Two hijackers of a Libyan Afriqiyah Airways Airbus A320 surrender to Maltese military on the runway at Malta Airport, December 23, 2016. REUTERS/Darrin Zammit-Lupi MALTA OUT 

Two hijackers of a Libyan Afriqiyah Airways Airbus A320 surrender to Maltese military on the runway at Malta Airport, December 23, 2016. REUTERS/Darrin Zammit-Lupi MALTA OUT 

Two hijackers of a Libyan Afriqiyah Airways Airbus A320 surrender to Maltese military on the runway at Malta Airport, December 23, 2016. REUTERS/Darrin Zammit-Lupi MALTA OUT 

One of the hijackers of a Libyan Afriqiyah Airways Airbus A320 waves a Gaddafi-era Libyan flag at Malta Airport, December 23, 2016. REUTERS/Darrin Zammit-Lupi MALTA OUT 

Two hijackers of a Libyan Afriqiyah Airways Airbus A320 surrender to Maltese military on the runway at Malta Airport, December 23, 2016. REUTERS/Darrin Zammit-Lupi MALTA OUT 

Two hijackers of a Libyan Afriqiyah Airways Airbus A320 surrender to Maltese military on the runway at Malta Airport, December 23, 2016. REUTERS/Darrin Zammit-Lupi MALTA OUT 

Two hijackers of a Libyan Afriqiyah Airways Airbus A320 surrender to Maltese military on the runway at Malta Airport, December 23, 2016. REUTERS/Darrin Zammit-Lupi MALTA OUT 

Two hijackers of a Libyan Afriqiyah Airways Airbus A320 surrender to Maltese military on the runway at Malta Airport, December 23, 2016. REUTERS/Darrin Zammit-Lupi MALTA OUT 

Two hijackers of a Libyan Afriqiyah Airways Airbus A320 surrender to Maltese military on the runway at Malta Airport, December 23, 2016. REUTERS/Darrin Zammit-Lupi MALTA OUT 

The man who was arrested after he hijacked an EgyptAir flight, which was forced to land in Cyprus on Tuesday, gestures as he is transferred by Cypriot police from a court in the city of Larnaca, Cyprus March 30, 2016. REUTERS/Yiannis Kourtoglou REUTERS/Yiannis Kourtoglou 

The man (C) who was arrested after he hijacked an EgyptAir flight, which was forced to land in Cyprus on Tuesday, is transferred by Cypriot police as they leave a court in the city of Larnaca, Cyprus March 30, 2016. REUTERS/Yiannis Kourtoglou

The man (C) who was arrested after he hijacked an EgyptAir flight, which was forced to land in Cyprus on Tuesday, is transferred by Cypriot police as they leave a court in the city of Larnaca, Cyprus March 30, 2016. REUTERS/Yiannis Kourtoglou

The man who was arrested after he hijacked an EgyptAir flight, which was forced to land in Cyprus on Tuesday, gestures as he is transferred by Cypriot police from a court in the city of Larnaca, Cyprus March 30, 2016. REUTERS/Yiannis Kourtoglou REUTERS/Yiannis Kourtoglou 

The man who was arrested after he hijacked an EgyptAir flight, which was forced to land in Cyprus on Tuesday, gestures as he is transferred by Cypriot police from a court in the city of Larnaca, Cyprus March 30, 2016. REUTERS/Yiannis Kourtoglou REUTERS/Yiannis Kourtoglou TPX IMAGES OF THE DAY

The man (C) who was arrested after he hijacked an EgyptAir flight, which was forced to land in Cyprus on Tuesday, is transferred by Cypriot police to a court in the city of Larnaca, Cyprus March 30, 2016. REUTERS/Yiannis Kourtoglou

The man (C) who was arrested after he hijacked an EgyptAir flight, which was forced to land in Cyprus on Tuesday, is transferred by Cypriot police to a court in the city of Larnaca, Cyprus March 30, 2016. REUTERS/Yiannis Kourtoglou 

The man (C) who was arrested after he hijacked an EgyptAir flight, which was forced to land in Cyprus on Tuesday, is transferred by Cypriot police to a court in the city of Larnaca, Cyprus March 30, 2016. REUTERS/Yiannis Kourtoglou TPX IMAGES OF THE DAY

William Potts speaks to reporters outside Havana's Jose Marti International Airport, before boarding a plane to the U.S. November 6, 2013. Potts, a former U.S. militant who hijacked a plane to Cuba almost 30 years ago, flew home to the United States to face air piracy charges on November 6, 2013 and was taken into FBI custody in Miami, an FBI spokesman said. Potts was scheduled to appear before a U.S. judge in Miami on November 7, 2013, FBI Special Agent Michael Leverock said. REUTERS/Desmond Boylan (CUBA - Tags: POLITICS TRANSPORT CRIME LAW TPX IMAGES OF THE DAY) 

Jordanian and U.S. special forces take part in a hijacked plane rescue simulation at the King Abdullah Special Operations Training during their "Eager Lion" military exercise in Amman May 27, 2012. The exercise conducted by the U.S. and Jordan includes more than 19 countries from five different continents and more than 12,000 participants, according to the United States Central Command. REUTERS/Ali Jarekji (JORDAN - Tags: MILITARY) 

Russian police officers role-play as armed criminals hijacking a bank during a performance for spectators at a military festival held in honour of the forthcoming Defender of the Fatherland Day in Russia's Siberian city of Krasnoyarsk February 21, 2012. Russians celebrates Defender of the Fatherland Day, formerly called Red Army Day, on February 23. REUTERS/Ilya Naymushin (RUSSIA - Tags: SOCIETY MILITARY ANNIVERSARY) 

Passengers disembark from the hijacked "Kartepe" ferry in Marmara sea off the northwestern Turkish town of Silivri, near Istanbul, November 12, 2011. Turkish security forces killed a lone assailant who hijacked a ferry with some 20 passengers on board in northwest Turkey on Friday evening, Istanbul Governor Huseyin Avni Mutlu told reporters on Saturday. He said the crew and passengers were all safe and the identity of the hijacker, who was carrying explosives, was still being determined. Earlier reports said up to five suspected Kurdish militants armed with explosives carried out the hijacking. REUTERS/Osman Orsal (TURKEY - Tags: CRIME LAW) 

U.S. Army soldiers visit the Pentagon Memorial near Washington, August 23, 2011, near the impact site of highjacked American Airlines Flight 77 which crashed into the Pentagon (background) on September 11, 2001. The United States will commemorate the 10th anniversary of September 11, 2001 attacks next month. REUTERS/Jason Reed (UNITED STATES - Tags: ANNIVERSARY MILITARY SOCIETY) 

Abduhl Wali-i-Musi, accused of hijacking the Maersk Alabama and taking its captain Richard Phillips hostage, is led into a federal building in New York April 20, 2009. The sole surviving Somali pirate from the hijacking is being tried in New York and is scheduled to appear in court Tuesday morning. REUTERS/Eric Thayer (UNITED STATES CONFLICT SOCIETY) 

Abduhl Wali-i-Musi, accused of hijacking the Maersk Alabama and taking its captain Richard Phillips hostage, is led into a federal building in New York April 20, 2009. The sole surviving Somali pirate from the hijacking is being tried in New York and is scheduled to appear in court Tuesday morning. REUTERS/Eric Thayer (UNITED STATES CONFLICT SOCIETY IMAGE OF THE DAY TOP PICTURE) 

A crew member of the U.S.-flagged Maersk Alabama container ship, which was hijacked by pirates on April 8, 2009 off the coast of Somalia, walks while embracing a family member as he arrives at Andrews Air Force Base in Maryland, April 16, 2009. REUTERS/Jonathan Ernst (UNITED STATES CONFLICT SOCIETY MILITARY) 

Family members wave flags to greet the plane carrying the crew members of the U.S.-flagged Maersk Alabama container ship, which was hijacked by pirates on April 8, 2009 off the coast of Somalia, as they arrive at Andrews Air Force Base in Maryland, April 16, 2009. REUTERS/Jonathan Ernst (UNITED STATES CONFLICT SOCIETY MILITARY IMAGE OF THE DAY TOP PICTURE) 

Crew members of the U.S.-flagged Maersk Alabama container ship, which was hijacked by pirates on April 8, 2009 off the coast of Somalia, walk hand-in-hand with friends and family as they arrive at Andrews Air Force Base in Maryland, April 16, 2009. Richard Phillips, the ship's captain who was rescued by the U.S. Navy when snipers killed three of the pirates, did not travel on the charter plane with his crew. REUTERS/Jonathan Ernst (UNITED STATES CONFLICT SOCIETY MILITARY) 

A crew member (2nd L) of the U.S.-flagged Maersk Alabama container ship, which was hijacked by pirates on April 8, 2009 off the coast of Somalia, is reunited with his family after arriving at Andrews Air Force Base in Maryland, April 16, 2009. Richard Phillips, the ship's captain who was rescued by the US Navy when snipers killed three of the pirates, did not travel on the charter plane with his crew. REUTERS/Jonathan Ernst (UNITED STATES CONFLICT SOCIETY MILITARY IMAGE OF THE DAY TOP PICTURE) 

A youth on a scooter drives past a burnt out lorry in north Belfast March 30, 2009. Unidentified groups hijacked cars and set some of them alight in the Northern Ireland capital Belfast on Monday, closing some roads, disrupting rush hour traffic and causing security alerts, police said. REUTERS/Cathal McNaughton
(NORTHERN IRELAND POLITICS CONFLICT IMAGE OF THE DAY TOP PICTURE) 

South Korean ship Maputo 9 (L) is escorted by a Yemeni coast guard boat at the southern Yemeni port of Aden November 13, 2007. Two South Korean ships, Maputo 7 and Maputo 9 arrived in Aden on Tuesday after they were freed on November 5, 2007 by Somali pirates who had hijacked them last May. REUTERS/Khaled Abdullah (YEMEN) 

A woman hostage walks behind a hijacked bus after being set free in the Gerakas suburb some 25 kilometres north of Athens. A woman hostage walks away from a hijacked bus as police special forces watch her movement at Gerakas suburb some 25 kilometres north of Athens December 15, 2004. Foreign gunmen who seized a Greek bus on Wednesday allowed four of their 26 hostages to leave the vehicle, Reuters correspondents at the scene said. Pictures of the month December 2004 REUTERS/Yiorgos Karahalis pictures of the month December 2004 

People observe three minutes of silence September 14, 2001, on the Place de la Concorde in Paris to pay respect to the victims of the terrorist attacks in New York and Washington earlier in the week. Europeans observe a day of mourning in solidarity with their American Allies after this week's highjack strikes on the USA. 

Dalil Boubakeur head of the Mosque of Paris, French Cardinal Monsignor Jean-Marie Lustiger, Jean-Arnold Clermont President of French Protestant federation and French Rabbi Joseph Sitruck celebrate a ceremony at the Paris American church September 13, 2001, in memory of the victims of the attacks in New York and Washington. Thousands of lives were lost September 11 after two highjacked planes ploughed into the World Trade center, another plane plunged into the Pentagon and a fourth crashed into rural Pensylvania. 

Dalil Boubakeur head of the Mosque of Paris, French Cardinal Monsignor Jean-Marie Lustiger, Jean-Arnold Clermont President of French Protestant federation and French Rabbi Joseph Sitruck celebrate a ceremony at the Paris American church September 13, 2001, in memory of the victims of the attacks in New York and Washington. Thousands of lives were lost September 11 after two highjacked planes ploughed into the World Trade center, another plane plunged into the Pentagon and a fourth crashed into rural Pensylvania. 

Dalil Boubakeur head of the Mosque of Paris, French Cardinal Monsignor Jean-Marie Lustiger, Jean-Arnold Clermont President of French Protestant federation and French Rabbi Joseph Sitruck celebrate a ceremony at the Paris American church September 13, 2001, in memory of the victims of the attacks in New York and Washington. Thousands of lives were lost September 11 after two highjacked planes ploughed into the World Trade center, another plane plunged into the Pentagon and a fourth crashed into rural Pensylvania. 

French President Jacques Chirac (L) and Prime Minister Lionel Jospin attend a ceremony at the Paris American church September 13, 2001, in memory of the victims of the attacks in New York and Washington. Thousands of lives were lost September 11 after two highjacked planes ploughed into the World Trade center, another plane plunged into the Pentagon and a fourth crashed into rural Pensylvania. 

CEREMONY AT THE PARIS AMERICAN CHURCH DURING A CEREMONY FOR THE VICTIMS
OF THE ATTTACKS IN NEW YORK AND WASHINGTON.


Dalil Boubakeur head of the Mosque of Paris, French Cardinal Monsignor
Jean-Marie Lustiger, Jean-Arnold Clermont President of French
Protestant federation and French Rabbi Joseph Sitruck celebrate a
ceremony at the Paris American church September 13, 2001, in memory of
the victims of the attacks in New York and Washington. Thousands of
lives were lost September 11 after two highjacked planes ploughed into
the World Trade center, another plane plunged into the Pentagon and a
fourth crashed into rural Pensylvania. REUTERS/POOL/Patrick Kovarik 

CEREMONY AT THE PARIS AMERICAN CHURCH DURING A CEREMONY FOR THE VICTIMS
OF THE ATTTACKS IN NEW YORK AND WASHINGTON.


Dalil Boubakeur head of the Mosque of Paris, French Cardinal Monsignor
Jean-Marie Lustiger, Jean-Arnold Clermont President of French
Protestant federation and French Rabbi Joseph Sitruck celebrate a
ceremony at the Paris American church September 13, 2001, in memory of
the victims of the attacks in New York and Washington. Thousands of
lives were lost September 11 after two highjacked planes ploughed into
the World Trade center, another plane plunged into the Pentagon and a
fourth crashed into rural Pensylvania. REUTERS/POOL/Patrick Kovarik 

CEREMONY AT THE PARIS AMERICAN CHURCH DURING A CEREMONY FOR THE VICTIMS
OF THE ATTTACKS IN NEW YORK AND WASHINGTON.


Dalil Boubakeur head of the Mosque of Paris, French Cardinal Monsignor
Jean-Marie Lustiger, Jean-Arnold Clermont President of French
Protestant federation and French Rabbi Joseph Sitruck celebrate a
ceremony at the Paris American church September 13, 2001, in memory of
the victims of the attacks in New York and Washington. Thousands of
lives were lost September 11 after two highjacked planes ploughed into
the World Trade center, another plane plunged into the Pentagon and a
fourth crashed into rural Pensylvania. REUTERS/POOL/Patrick Kovarik 

French Cardinal Monsignor Jean-Marie Lustiger (C), Jean-Arnold Clermont
President of French Protestant federation (2nd R) and French Rabbi
Joseph Sitruck (L) celebrate a service at the Paris American church
September 13, 2001, in memory of the victims of the attacks in New York
and Washington. Thousands of lives were lost September 11 after two
highjacked planes ploughed into the World Trade center, another plane
plunged into the Pentagon and a fourth crashed into rural Pensylvania.
REUTERS/POOL/Patrick Kovarik

PW/ 

FRENCH PRESIDENT JACQUES CHIRAC ATTENDS A CEREMONY AT THE PARIS
AMERICAN CHURCH DURING A CEREMONY FOR THE VICTIMS OF THE ATTTACKS IN
NEW YORK AND WASHINGTON.


French President Jacques Chirac (L) and Prime Minister Lionel Jospin
attend a ceremony at the Paris American church September 13, 2001, in
memory of the victims of the attacks in New York and Washington.
Thousands of lives were lost September 11 after two highjacked planes
ploughed into the World Trade center, another plane plunged into the
Pentagon and a fourth crashed into rural Pensylvania.
REUTERS/POOL/Patrick Kovarik 

People pray during a ceremony at the Paris American church September 12, 2001, in memory of the victims of the attacks in New York and Washington. Thousands of lives were lost September 11 after two highjacked planes ploughed into the World Trade center, another plane plunged into the Pentagon and a fourth crashed into rural Pensylvania. 

People pray during a ceremony at the Paris American church September 12, 2001, in memory of the victims of the attacks in New York and Washington. Thousands of lives were lost September 11 after two highjacked planes ploughed into the World Trade center, another plane plunged into the Pentagon and a fourth crashed into rural Pensylvania. 

People hug each other and cry during a ceremony at the Paris American church September 12, 2001, in memory of the victims of the attacks in New York and Washington. Thousands of lives were lost September 11 after two highjacked planes ploughed into the World Trade center, another plane plunged into the Pentagon and a fourth crashed into rural Pensylvania. 

An employee at Paris American church lowers the American flag to half mast September 12, 2001 prior to a ceremony in memory of the victims of the attacks in New York and Washington. Thousands of lives were lost September 11 after two highjacked planes ploughed into the World Trade center, another plane plunged into the Pentagon and a fourth crashed into rural Pensylvania. 

Flags of member states of the European Union fly at half mast in front of the building of the European Parliament in Strasbourg September 12, 2001, following the terrorist attacks in the United States. Thousands of lives were lost September 11 after two highjacked planes ploughed into the World Trade center, another plane plunged into the Pentagon and a fourth crashed into rural Pensylvania. 

Flags of member states of the European Union fly at half mast in front of the building of the Council of Europe in Strasbourg September 12, 2001, following the terrorist attacks in the United States. Thousands of lives were lost September 11 after two highjacked planes ploughed into the World Trade center, another plane plunged into the Pentagon and a fourth crashed into rural Pensylvania. 

Flags of member states of the European Union fly at half mast in front of the building of the European Parliament in Strasbourg September 12, 2001, following the terrorist attacks in the United States. Thousands of lives were lost September 11 after two highjacked planes ploughed into the World Trade center, another plane plunged into the Pentagon and a fourth crashed into rural Pensylvania. 

People pray during a ceremony at the Paris American church September 12, 2001, in memory of the victims of the attacks in New York and Washington. Thousands of lives were lost September 11 after two highjacked planes ploughed into the World Trade center, another plane plunged into the Pentagon and a fourth crashed into rural Pensylvania. 

People pray during a ceremony at the Paris American church September 12, 2001, in memory of the victims of the attacks in New York and Washington. Thousands of lives were lost September 11 after two highjacked planes ploughed into the World Trade center, another plane plunged into the Pentagon and a fourth crashed into rural Pensylvania. 

A woman carries her baby past a memorial set up in the front of the
United States embassy in Ottawa, September 12, 2001. The World Trade
Center was destroyed when terrorists crashed into the towers in
highjacked airliners on September 11. REUTERS/Jim Young

JY