Security Repercussions Due To The 2006 Transatlantic Aircraft Plot
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The 2006 transatlantic aircraft plot was a
terrorist Terrorism, in its broadest sense, is the use of violence against non-combatants to achieve political or ideological aims. The term is used in this regard primarily to refer to intentional violence during peacetime or in the context of war aga ...
plot to detonate liquid explosives, carried aboard
airliners An airliner is a type of airplane for transporting passengers and air cargo. Such aircraft are most often operated by airlines. The modern and most common variant of the airliner is a long, tube shaped, and jet powered aircraft. The largest o ...
travelling from the United Kingdom to the United States and Canada, disguised as soft drinks. The plot was discovered by British Metropolitan police during an extensive surveillance operation. A number of security measures were taken in response to the 2006 transatlantic aircraft plot.


United Kingdom

Following the raids, the terror alert level was raised by Britain's Joint Terrorist Analysis Centre on 10 August 2006 from 'severe' to 'critical', signalling an attack was believed to be imminent. Security at all British airports was raised to the highest level, with all property having to go into the aircraft's hold, except for essentials such as travel documents and wallets. Passengers travelling with small children were permitted to carry baby food but had to taste it in front of staff. On 14 August 2006, the threat level was reduced from 'Critical' to 'Severe'. An announcement was made that the hand baggage rules would shortly be relaxed to permit the carrying of one small item of hand baggage, although the ban on all liquids remained. Hand baggage was reintroduced at some smaller airports on 14 August, but was not permitted at Heathrow and Gatwick Airports until 15 August. Despite having made it clear in August that the security measures were "here to stay", at the end of September, under pressure from the flight industry and professional musicians, the British government relaxed the size restrictions to the aviation industry standard (56 cm × 45 cm × 25 cm) and allowed musical instruments as hand luggage. On 6 November 2006 the restrictions were relaxed once again to allow limited volumes of liquids in the cabin. In November 2007, Transport Secretary
Ruth Kelly Ruth Maria Kelly (born 9 May 1968) is the chair of Water UK, the trade association representing all of the water and wastewater companies of the United Kingdom. She was previously a British Labour Party (UK), Labour Party politician who serve ...
announced that from 8 January 2008, British airports would be able to allow more than one item of hand luggage on board. This was following criticism in October by the shadow transport secretary
Theresa Villiers Dame Theresa Anne Villiers (born 5 March 1968) is a British politician who served as the Member of Parliament (United Kingdom), Member of Parliament (MP) for Chipping Barnet (UK Parliament constituency), Chipping Barnet from 2005 United Kingdom ...
, who said that because of the restrictive rules, Heathrow was "rapidly becoming a national embarrassment". Chief executive of
British Airways British Airways plc (BA) is the flag carrier of the United Kingdom. It is headquartered in London, England, near its main Airline hub, hub at Heathrow Airport. The airline is the second largest UK-based carrier, based on fleet size and pass ...
Willie Walsh was also critical, saying that they are "damaging the UK's reputation around the world from a business perspective".


United States

Following the operation, the
United States Department of Homeland Security The United States Department of Homeland Security (DHS) is the U.S. United States federal executive departments, federal executive department responsible for public security, roughly comparable to the Interior minister, interior, Home Secretary ...
banned all liquids and gels except baby formula and prescription medications in the name of the ticket holder in carry-on luggage on all flights. The DHS level in the United States was raised to 'severe' (red) for all flights from the UK. The terror level for all other domestic or non-British international flights in the United States was raised to High (orange). According to White House Press Secretary Tony Snow, President Bush was aware of the plot by 6 August and approved raising the alert on 9 August.


Other countries

* Australia – Qantas began to implement tighter security checks, which would initially only apply to flights heading to the US and the UK, but Prime Minister
John Howard John Winston Howard (born 26 July 1939) is an Australian former politician who served as the 25th prime minister of Australia from 1996 to 2007. He held office as leader of the Liberal Party of Australia. His eleven-year tenure as prime min ...
mentioned that it could lead to a permanent ban of certain hand luggage in the near future. *
Barbados Barbados, officially the Republic of Barbados, is an island country in the Atlantic Ocean. It is part of the Lesser Antilles of the West Indies and the easternmost island of the Caribbean region. It lies on the boundary of the South American ...
 – Plane traffic delays affected many airports across the world including the
Grantley Adams International Airport Grantley Adams International Airport (GAIA) is an international airport at Seawell, Christ Church, Barbados, Christ Church, Barbados, serving as the country's only port of entry by air. The airport is the only designated port of entry for ...
located in Barbados. After immediately instituting a policy of heightened security, the delays have affected many tourists including British Prime Minister
Tony Blair Sir Anthony Charles Lynton Blair (born 6 May 1953) is a British politician who served as Prime Minister of the United Kingdom from 1997 to 2007 and Leader of the Labour Party (UK), Leader of the Labour Party from 1994 to 2007. He was Leader ...
's attempts to cut his Caribbean holiday short and return to the United Kingdom. * Belgium – The
Belgian Federal Police The Belgian Federal Police (; ; ) is the national police force of the Belgium, Kingdom of Belgium. It carries out specialized and supra-local administrative and judicial police operations, and supports local police services when needed. A ...
, coordinating its efforts with the British and French governments, increased security on the
Eurostar Eurostar is an international high-speed rail service in Western Europe, connecting Belgium, France, Germany, the Netherlands and the United Kingdom. The service is operated by the Eurostar Group which was formed from the merger of Eurostar, ...
rail line that connects London with Paris and
Brussels Brussels, officially the Brussels-Capital Region, (All text and all but one graphic show the English name as Brussels-Capital Region.) is a Communities, regions and language areas of Belgium#Regions, region of Belgium comprising #Municipalit ...
. * Canada –
Transport Canada Transport Canada () is the Ministry (government department), department within the Government of Canada responsible for developing regulations, Policy, policies and Public services, services of road, rail, marine and air Transport in Canada, tra ...
, though unaware of any specific threat, nevertheless restricted all liquid and gel items from hand luggage on departing flights. Exceptions were made for approved baby formula and prescription medication. In addition, all passengers travelling to the United States were subject to having their footwear examined. * Finland – Finland's national airline
Finnair Finnair Plc (, ) is the flag carrier and largest full-service legacy airline of Finland, with headquarters in Vantaa on the grounds of Helsinki Airport, its airline hub, hub. Finnair and its subsidiaries dominate both domestic and international ...
cancelled two of its flights to London Heathrow on Thursday and one from Heathrow to Helsinki on Sunday, the remaining flights only had slight delays. Other airlines flying to and from Finland have experienced only delays. Passengers are forbidden to carry anything more than personal documents and wallets in flights to Britain. * Hong Kong –
Airport authority An airport authority is an entity responsible for the operation and oversight of an airport or group of airports. The Airports Council International is the world trade association of airport authorities. In some countries, when the authority of an ...
at the Chek Lap Kok airport have advised passengers going to the United States to arrive three hours before their scheduled flight in order to pass through tighter security checks. Hong Kong Government reminds Hongkongers in the United Kingdom to keep abreast of latest developments and pay attention to personal safety. * India – Indian airports have been put under high alert and hand-baggage screenings have been tightened. Surveillance has also been stepped up. Incoming flights from the United Kingdom are facing delays due to greater checks. * Ireland – The National Civil Aviation Security Committee, which advises the
Irish Government The Government of Ireland () is the executive authority of Ireland, headed by the , the head of government. The government – also known as the cabinet – is composed of ministers, each of whom must be a member of the , which consists of ...
, met to review the situation. Irish Minister for Transport
Martin Cullen Martin Cullen (born 2 November 1954) is an Irish former Fianna Fáil politician who served as Minister for Arts, Sport and Tourism from 2008 to 2010, Minister for Social and Family Affairs from 2007 to 2008, Minister for Transport from 2004 ...
said there is no increased security risk at Irish airports. * Japan – Though airport security was not heightened, Japan Airlines and All Nippon Airways began to strictly prohibit liquid items from its planes. * Netherlands – The Dutch government said the UK terror plot would have no effect to the threat level in the country and would remain at "substantial" and "low" for
Schiphol Amsterdam Airport Schiphol , known informally as Schiphol Airport (, ), is the main international airport of the Netherlands, and is one of the major hubs for the SkyTeam airline alliance. It is located southwest of Amsterdam, in the municipal ...
. * New Zealand – Additional security restrictions were placed on passengers departing from New Zealand to the UK, and there were some flight delays; however, none were cancelled. In order to maintain the heightened security, thirty-two extra security staff supported by sniffer dogs were brought in to man three extra security lanes at
Auckland Airport Auckland Airport is an international airport serving Auckland, the most populous city of New Zealand. It is the largest and busiest airport in the country, with over 18.7 million passengers served in the year ended December 2024. The airpor ...
. * Norway – The Norwegian government will not change the threat level and it remains at Low. *
Pakistan Pakistan, officially the Islamic Republic of Pakistan, is a country in South Asia. It is the List of countries and dependencies by population, fifth-most populous country, with a population of over 241.5 million, having the Islam by country# ...
 – The Pakistani government made several arrests in response to the plot. Foreign Office spokeswoman Tasnim Aslam stated, "In fact, Pakistan played a very important role in uncovering and breaking this international terrorist network". * Philippines – Authorities at
Ninoy Aquino International Airport Ninoy Aquino International Airport (NAIA ; ; ), also known as Manila International Airport (MIA), is the main international airport serving Metro Manila in the Philippines. Located between the cities of Pasay and Parañaque, about south of ...
have placed its airports on heightened alert. NAIA representatives have stated that all U.S.-bound flights have prohibited passengers from bringing liquid items on board. * South Korea – The government has put
Incheon International Airport Incheon International Airport is the main international airport serving Seoul, the capital of South Korea. It is also one of the largest and busiest airports in the world. This airport opened for business on 29 March 2001, to replace the old ...
on heightened alert following the foiled terrorist plot. All passengers are undergoing additional screening and all U.S.- and UK-bound flights are prohibited from carrying any liquids on flights. Furthermore, passengers en route to the US will have their belongings searched before boarding their flight. Korea's Civil Aviation Safety Authority of the Ministry of Construction and Transportation raised the security level from green (ordinary) to blue (concerned) and then to yellow (caution). A yellow alert indicates intelligence suggesting a threat to aviation. *
Republic of China Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main geography of Taiwan, island of Taiwan, also known as ''Formosa'', lies between the East China Sea, East and South China Seas in the northwestern Pacific Ocea ...
(Taiwan) – Taipei heightened security measures on U.S.- and UK-bound flights. All ROC airlines banned UK- and U.S.-bound passengers from taking "large carry-on luggage" on board. Liquids also had to be checked in, not carried on board.


Hand luggage restrictions


United Kingdom

Passengers travelling from and through all other UK airports were temporarily only permitted to carry-on those items on a restricted list, and these items had to be carried in transparent
plastic bag A plastic bag, poly bag, or pouch is a type of container made of thin, flexible, plastic film, nonwoven fabric, or plastic textile. Plastic bags are used for containing and transporting goods such as foods, produce, Powder (substance), powders, ...
s. No liquids could be carried on board. Liquid medications, such as
insulin Insulin (, from Latin ''insula'', 'island') is a peptide hormone produced by beta cells of the pancreatic islets encoded in humans by the insulin (''INS)'' gene. It is the main Anabolism, anabolic hormone of the body. It regulates the metabol ...
for
diabetic Diabetes mellitus, commonly known as diabetes, is a group of common endocrine diseases characterized by sustained high blood sugar levels. Diabetes is due to either the pancreas not producing enough of the hormone insulin, or the cells of th ...
s, were banned, "unless verified as authentic." All
laptops A laptop computer or notebook computer, also known as a laptop or notebook, is a small, portable personal computer (PC). Laptops typically have a clamshell form factor with a flat-panel screen on the inside of the upper lid and an alpha ...
, mobile phones, digital audio players and other electronic items were also banned. It was suggested in ''
The Times ''The Times'' is a British Newspaper#Daily, daily Newspaper#National, national newspaper based in London. It began in 1785 under the title ''The Daily Universal Register'', adopting its modern name on 1 January 1788. ''The Times'' and its si ...
'' that the restrictions on hand baggage would be "enforced pending a decision from the National Aviation Security Committee following which they may be made permanent." This was confirmed by sources close to
Douglas Alexander Douglas Garven Alexander (born 26 October 1967) is a British politician who has served as Minister of State for Trade Policy and Economic Security since 2024, having previously held the role from 2004 to 2005. He has also served as Minister o ...
, the Secretary of State for Transport, on BBC News. On 14 August 2006, an announcement was made that the restrictions on hand baggage for flights originating in the UK would shortly be liberalised to permit carriage of one small (45 cm × 35 cm × 16 cm) piece of hand baggage per person. Whilst electronics, books, and other dry items were again permitted on flights leaving the UK, all liquids above 100ml remained banned in hand luggage. On 2 November 2014, liquid restriction rules were eased. However, as of current, some airports, including Stansted Airport and Manchester Airport, have added another restriction for travel bottle kits, stating that the bottle capacity must be printed or embossed on the bottles, with measurements on handwritten and sticker labels deemed insufficient and outright inadmissible to security.


United States

Similar emergency restrictions were placed on airline passengers traveling within and from the United States. Initially, all liquids were forbidden, including beverages, hair gels, toothpaste, lipstick, sunscreen, and hand lotions, due to the suspicion that liquid chemicals were planned to be used in the explosive purposes. Electronic devices (iPods, laptops, etc.) were still allowed for domestic flights.


3-1-1 for carry-ons

As of 26 September 2006, the
Transportation Security Administration The Transportation Security Administration (TSA) is an agency of the United States Department of Homeland Security (DHS) that has authority over the security of transportation systems within and connecting to the United States. It was created ...
adjusted the ban on liquids, aerosols and gels. Travelers are permitted to carry liquids through security checkpoints in containers of 3.4 ounces (100 mL) or less that fit comfortably in one quart-size clear plastic zip-top bag which need to easily seen through by the security agent. Each passenger can only bring along one plastic zip-top bag. For check-in baggage, there are no limits to the number of containers than can be packed. This procedure came to be known as "3-1-1 for carry-ons" (3.4 ounce containers in a 1 quart bag, 1 bag per passenger). Items purchased in the restricted or transit areas after clearing security could be brought on board without restriction. Other exemptions to this restriction include medications and breast milk.


European Union

On 10 October 2006 a
European Union The European Union (EU) is a supranational union, supranational political union, political and economic union of Member state of the European Union, member states that are Geography of the European Union, located primarily in Europe. The u ...
Regulation placed restrictions on carrying liquid materials in hand luggage across the EU. This restriction was to be eased on 2 November 2014 with new RapidScan liquid explosive detectors, but the rules remain in effect across most EU airports.


Japan

On 1 March 2007, The Ministry of Land, Infrastructure and Transport also set out new regulations concerning the carriage of liquids in carry-on luggage for international flights. Passengers traveling abroad from Japan are required to place liquid items with a capacity of up to 100ml into a transparent resealable bag not exceeding 20 cm × 20 cm. Any liquid items exceeding 100ml in capacity are prohibited from being carried on board and must be placed in check-in baggage.


Singapore

On 8 May 2007, Singapore introduced new liquid restrictions, which is limited to 100ml for all flights (excluding Seletar Airport), where
Changi Airport Singapore Changi Airport ( ; ) is the primary international airport that serves the country of Singapore, and is one of the largest transportation hubs in Asia. More than 100 airlines operate from the airport, with flights to destinations in A ...
is the biggest airport with more frequent visitors and direct services. Liquids less than 100ml must be sealed into transparent resealable bag not exceeding 20 cm x 20 cm. This restriction was eased on 2 November 2014.


Other Countries

Subsequently, similar restrictions for liquids in carry on luggage were set out in many other countries worldwide including Korea, Taiwan, Hong Kong, Vietnam and China who all set out liquid restrictions on international flights.


Impact

Overall, an estimated 400,000 passengers were affected because of the alerts. It has been estimated that the first day of delays cost the airlines over £175 million. As many as 20,000 bags are believed to have been misplaced at Heathrow in the days following the flight cancellations.


Flight cancellations

Some inbound flights to
London Heathrow Airport Heathrow Airport , also colloquially known as London Heathrow Airport and named ''London Airport'' until 1966, is the primary and largest international airport serving London, the capital and most populous city of England and the United Kingd ...
were cancelled on the day of the arrests, most notably the Thursday short-haul flights of British Airways. Some flights to and from
London Gatwick Airport Gatwick Airport , also known as London Gatwick Airport (), is the Airports of London, secondary international airport serving London, West Sussex and Surrey. It is located near Crawley in West Sussex, south of Central London. In 2024, Gatwic ...
were also suspended, On Sunday 13 August 30% of flights out of Heathrow were cancelled to reduce pressure on the screeners. By 15 August flight cancellations had fallen to 47 flights at Heathrow, and 8 Ryanair flights from Stansted. It was anticipated that cancellations would reduce on 16 August, with 90% of flights expected to depart as scheduled.


Controversy over the alert

On 12 August a public argument broke out between BAA, the operator of Heathrow and other airports, and
British Airways British Airways plc (BA) is the flag carrier of the United Kingdom. It is headquartered in London, England, near its main Airline hub, hub at Heathrow Airport. The airline is the second largest UK-based carrier, based on fleet size and pass ...
, with Willie Walsh, BA's Chief Executive, accusing BAA of not being able to cope with the increased security and baggage checks.
Ryanair Ryanair is an Irish Low-cost carrier#Ultra low-cost carrier, ultra low-cost airline group headquartered in Swords, County Dublin, Ireland. The parent company, Ryanair Holdings plc, includes subsidiaries Ryanair , Malta Air, Buzz (Ryanair), Buzz ...
also called on the British government to employ police and military reservists to speed up the full body searches which were now mandated, with Chief Executive Michael O'Leary saying: On 18 August Ryanair's O'Leary delivered an ultimatum to the British government demanding the resumption of normal hand baggage dimensions and hand screening one passenger in four instead of one in two within one week, otherwise Ryanair would sue the Government for compensation under section 93 of the
Transport Act 2000 The Transport Act 2000 (c. 38) is an Act of Parliament, Act of the Parliament of the United Kingdom. It provided for a number of measures regarding transport in Great Britain; the first major change in the structure of the privatised railway sys ...
. The government responded that the actions were taken under the Aviation Security Act 1982, and no compensation was payable. Several pilots complained about the "ridiculous" luggage restrictions that was thought up by "utter morons", the
Sunday Herald The ''Sunday Herald'' was a Scottish Sunday newspaper, published between 7 February 1999 and 2 September 2018. Originally a broadsheet, it was published in compact format from 20 November 2005. The paper was known for having combined a centre- ...
reported. Carolyn Evans, head of flight safety at the British Airline Pilots Association, said, "the procedures put in place are not sustainable long term, and unless the passengers are treated more reasonably we will not have an industry left".


Economic effects

''
The Times ''The Times'' is a British Newspaper#Daily, daily Newspaper#National, national newspaper based in London. It began in 1785 under the title ''The Daily Universal Register'', adopting its modern name on 1 January 1788. ''The Times'' and its si ...
'' commented the day after the arrests, that the economic effects were minor and that the
FTSE 100 The Financial Times Stock Exchange 100 Index, also called the FTSE 100 Index, FTSE 100, FTSE, or, informally, the "Footsie" , is the United Kingdom's best-known stock market index of the 100 most market capitalisation, highly capitalised ...
index showed only "mild signs of strain", suggesting that terror was already priced into assets, that the market impact will be contained, and that "what is lost on the swings may be gained on the roundabouts". It observed that the real commercial risk is that "people's behaviour is altered... change may come so subtly and subconsciously that it is hard to see, let alone measure… people may stop travelling for example, not because they are scared of being blown up, but because they are tired of complying with necessary security measures." Estimates have also been made of the cost to airlines of their disrupted business. British Airways had to cancel 1280 flights, at a cost of £40 million. Ryanair are suing the UK government for the £3.3 million the cancellations cost them. Easyjet had to cancel 469 flights, at a cost of about £4 million. BAA says the alert cost them £13 million. The Civil Aviation Authority has just commenced its five-yearly review of operation of the airport, and it is likely that BAA's ability to handle the security alert will now become part of that review. The combined airline losses may have totalled £250 million. Air passengers also switched to other means of travel. Sea France ferry company operating from Dover to Calais announced that it had beaten its all-time record for number of passengers carried in one week, while Eurostar found that at the peak of the alert it was receiving 10 bookings per minute for immediate travel.


Other consequences

* BAA advised passengers not to travel to Heathrow unless their journey was "essential", and long delays were expected for outbound passengers. * Houses in and around Walton Drive in
High Wycombe High Wycombe, often referred to as Wycombe ( ), is a market town in Buckinghamshire, England. Lying in the valley of the River Wye, Buckinghamshire, River Wye surrounded by the Chiltern Hills, it is west-northwest of Charing Cross in London, ...
, where one house was raided, were evacuated.


See also

*
Airport security repercussions due to the September 11 attacks An airport is an aerodrome with extended facilities, mostly for commercial air transport. They usually consist of a landing area, which comprises an aerially accessible open space including at least one operationally active surface such ...


References

{{DEFAULTSORT:Transatlantic Aircraft Plot Security Reaction Islamic terrorism in the United Kingdom Islamic terrorism in the United States Failed airliner bombings Transatlantic aircraft plot security reaction Transatlantic aircraft plot security reaction Transatlantic aircraft plot security reaction War on terror Counterterrorism Terrorist incidents in the United States in 2006 2006 in the United States Terrorist incidents in Canada in the 2000s Terrorist incidents in Europe in 2006 Terrorist incidents in North America in 2006 Islamic terrorist incidents in 2006