In this image made from video, a group of people believed to be hostages kneel in the sand with their hands in the air at an unknown location in Algeria. Algerian de-mining teams were scouring a gas refinery on Sunday, Jan. 20, 2013 that was the scene of a bloody four-day standoff, searching for explosive traps left by the Islamist militants who took dozens of foreigners hostage. The siege left at least 23 captives dead, and the American government warned that there were credible threats of more kidnapping attempts on Westerners. (AP Photo/Ennahar TV) ALGERIA OUT, TV OUT

In this image made from video, a group of people believed to be hostages kneel in the sand with their hands in the air at an unknown location in Algeria. An Algerian security official says de-mining squads searching for explosives found "numerous" bodies Sunday, Jan. 20, 2012 at a gas refinery where Islamic militants took dozens of foreign workers hostage. (AP Photo/Ennahar TV) ALGERIA OUT, TV OUT

In this image made from video, a group of people believed to be hostages kneel in the sand with their hands in the air at an unknown location in Algeria. An Algerian security official says de-mining squads searching for explosives found "numerous" bodies Sunday, Jan. 20, 2013 at a gas refinery where Islamic militants took dozens of foreign workers hostage. (AP Photo/Ennahar TV) ALGERIA OUT, TV OUT

This image from video provided by the SITE Intel Group made available Thursday Jan. 17, 2013, purports to show militant militia leader Moktar Belmoktar. Algerian officials scrambled Thursday Jan. 17, 2013 for a way to end an armed standoff deep in the Sahara desert with Islamic militants who have taken dozens of foreigners hostage, turning to tribal Algerian Tuareg leaders for talks and contemplating an international force. The group claiming responsibility — called Katibat Moulathamine or the Masked Brigade — says it has captured 41 foreigners, including seven Americans, in the surprise attack Wednesday on the Ain Amenas gas plant. Algerian Interior Minister Daho Ould Kabila said the roughly 20 well armed gunmen were from Algeria itself, operating under orders from Moktar Belmoktar, al-Qaida's strongman in the Sahara. (AP Photo/SITE Intel Group) THE ASSOCIATED PRESS HAS NO WAY OF INDEPENDENTLY VERIFYING THE CONTENT, LOCATION OR DATE OF THIS PICTURE. MANDATORY CREDIT: SITE Intel Group

In this undated photo, a man stands next to the body of an unidentified person near Ain Amenas, Algeria. Algerian bomb squads scouring a gas plant where Islamist militants took dozens of foreign workers hostage found "numerous" new bodies on Sunday, Jan. 20, 2013 as they searched for explosive traps left behind by the attackers, a security official said, a day after a bloody raid ended the four-day siege of the remote desert refinery. (AP Photo/Echorouk Elyaoumi)

Norway's Prime Minister Jens Stoltenberg is embraced by Executive Vice President in Statoil, Margrethe Oevrum, Saturday Jan. 19, 2013, after his visit at the drop-in center in Bergen for relatives of the Statoil-employees taken hostage in Algeria. In a bloody finale on Saturday, Algerian special forces stormed a natural gas complex in the Sahara desert to end a four-day standoff with Islamic extremists that left at least 19 hostages and 29 militants dead. With few details emerging from the remote site, it was unclear whether anyone was rescued in the final operation. (AP Photo / Anette Karlsen, NTB scanpix) NORWAY OUT

Britain's Prime Minister David Cameron speaking to the House of Commons in London in this image taken from TV Friday Jan. 18, 2013, where the prime minister spoke about the kidnap situation in Algeria. (AP Photo/PA) UNITED KINGDOM OUT NO SALES NO ARCHIVE

Two British hostages Peter, left, and Alan, right, (no family name available), are seen after being released, in a street of Ain Amenas, near the gas plant where they have been kidnapped by Islamic militants, Saturday, Jan. 19, 2013. Algeria's special forces stormed the natural gas complex in the middle of the Sahara desert in a final assault Saturday, killing 11 militants, but not before they in turn killed seven hostages, the state news agency reported.(AP Photo/Anis Belghoul)

In this undated image made from video, a man looks out from a bus towards what appears to be smoke rising in the horizon at an unknown location in Algeria. An Algerian security official says de-mining squads searching for explosives found "numerous" bodies Sunday, Jan. 20, 2013 at a gas refinery where Islamic militants took dozens of foreign workers hostage. (AP Photo/Ennahar TV) ALGERIA OUT, TV OUT

Overseas Filipinos who were working at the sprawling oil field in Algeria which was attacked by terrorists, flash the "V" sign as they queue up at the Philippine Immigration upon arrival Sunday, Jan. 20, 2013 at the Ninoy Aquino International Airport in Manila, Philippines. The Department of Foreign Affairs in their statement, said that 39 Filipino workers, out of the 52 accounted for following the Algerian hostage crisis, arrived after being evacuated from Algeria via Palma de Mallorca in Spain. The workers claimed they were hundreds of kilometers away from the hostage-taking site but ordered evacuated. (AP Photo/Bullit Marquez)

Joseph Balmaceda, one of the four Filipino oil field workers who was wounded but survived the terrorist attacks of an oil field in Algeria, shows his scar as he talks about his ordeal shortly upon arrival at the Overseas Workers Welfare Administration in Manila, Philippines Monday Jan. 21, 2013. In a separate briefing by the Department of Foreign Affairs, Spokesman Raul Hernandez said six Filipino workers were killed and four more are still unaccounted for. (AP Photo/Bullit Marquez)

Overseas Filipinos who were working at the sprawling oil field in Algeria which was attacked by terrorists, flash the "V" sign as they queue up at the Philippine Immigration upon arrival Sunday, Jan. 20, 2013 at the Ninoy Aquino International Airport in Manila, Philippines. The Department of Foreign Affairs in their statement, said that 39 Filipino workers, out of the 52 accounted for following the Algerian hostage crisis, arrived after being evacuated from Algeria via Palma de Mallorca in Spain. The workers claimed they were hundreds of kilometers away from the hostage-taking site but ordered evacuated. (AP Photo/Bullit Marquez)

A British Airways plane at Terminal 5, Heathrow Airport is worked on as the winter weather continued across the UK Monday Jan. 21, 2013. Hundreds of fights were canceled in Britain, France and Germany Monday as snow and ice blanketed Western Europe. (AP Photo/Steve Parsons/PA) UNITED KINGDOM OUT - NO SALES - NO ARCHIVES

An arrivals board at Terminal 5, Heathrow Airport showing some delayed and canceled flights as the winter weather continued across the UK Monday Jan. 21, 2013. Hundreds of fights were canceled in Britain, France and Germany Monday as snow and ice blanketed Western Europe. (AP Photo/Steve Parsons/PA ) UNITED KINGDOM OUT - NO SALES - NO ARCHIVES

Two British hostages Peter, left, and Alan, right, (no family name available), are seen after being released, in a street of Ain Amenas, near the gas plant where they have been kidnapped by Islamic militants, Saturday, Jan. 19, 2013. Algeria's special forces stormed the natural gas complex in the middle of the Sahara desert in a final assault Saturday, killing 11 militants, but not before they in turn killed seven hostages, the state news agency reported.(AP Photo/Anis Belghoul)

In this image made from video, a group of people believed to be hostages kneel in the sand with their hands in the air at an unknown location in Algeria. Algerian de-mining teams were scouring a gas refinery on Sunday, Jan. 20, 2013 that was the scene of a bloody four-day standoff, searching for explosive traps left by the Islamist militants who took dozens of foreigners hostage. The siege left at least 23 captives dead, and the American government warned that there were credible threats of more kidnapping attempts on Westerners. (AP Photo/Ennahar TV) ALGERIA OUT, TV OUT

In this undated image made from video, a man looks out from a bus towards what appears to be smoke rising in the horizon at an unknown location in Algeria. An Algerian security official says de-mining squads searching for explosives found "numerous" bodies Sunday, Jan. 20, 2013 at a gas refinery where Islamic militants took dozens of foreign workers hostage. (AP Photo/Ennahar TV) ALGERIA OUT, TV OUT

In this image made from video, a group of people believed to be hostages kneel in the sand with their hands in the air at an unknown location in Algeria. An Algerian security official says de-mining squads searching for explosives found "numerous" bodies Sunday, Jan. 20, 2013 at a gas refinery where Islamic militants took dozens of foreign workers hostage. (AP Photo/Ennahar TV) ALGERIA OUT, TV OUT