An armed Afghan policeman runs at the of the scene of militants' attack in Kabul, Afghanistan, Wednesday, May 2, 2012. A suicide car bomber and Taliban militants disguised in burqas attacked a compound housing hundreds of foreigners in the Afghan capital on Wednesday, officials and witnesses said. The Taliban said the attack was a response to U.S. President Barack Obama's surprise visit just hours earlier. (AP Photo/Musadeq Sadeq) Photo: Musadeq Sadeq, Associated Press

Soldiers part of the NATO forces investigate the scene at the scene of a militant attack in Kabul, Afghanistan, Wednesday, May 2, 2012. A suicide car bomber and Taliban militants disguised in burqas attacked a compound housing hundreds of foreigners in the Afghan capital on Wednesday, officials and witnesses said. The Taliban said the attack was a response to President Barack Obama's surprise visit just hours earlier. (AP Photo/Ahmad Jamshid) Photo: Ahmad Jamshid, Associated Press

Smoke billows out from a compound after it was attacked by militants in Kabul, Afghanistan, Wednesday, May 2, 2012. Taliban insurgents attacked a compound housing foreigners in the Afghan capital Wednesday, killing seven people, hours after President Barack Obama made a surprise visit and signed a pact governing the U.S. presence after combat troops withdraw. (AP Photo/Musadeq Sadeq) Photo: Musadeq Sadeq, Associated Press

An Afghan policeman secures the area outside a compound after it was attacked by militants in Kabul, Afghanistan, Wednesday, May 2, 2012. A suicide car bomber and Taliban militants disguised in burqas attacked a compound housing hundreds of foreigners in the Afghan capital on Wednesday, officials and witnesses said. The Taliban said the attack was a response to President Barack Obama's surprise visit just hours earlier. (AP Photo/Ahmad Jamshid) Photo: Ahmad Jamshid, Associated Press

An Afghan policeman walks past the damaged compound at the scene of a militant attack in Kabul, Afghanistan, Wednesday, May 2, 2012. A suicide car bomber and Taliban militants disguised in burqas attacked a compound housing hundreds of foreigners in the Afghan capital on Wednesday, officials and witnesses said. The Taliban said the attack was a response to President Barack Obama's surprise visit just hours earlier. (AP Photo/Ahmad Jamshid) Photo: Ahmad Jamshid, Associated Press

Afghans push a damaged car away from the scene of a militant attack in Kabul, Afghanistan, Wednesday, May 2, 2012. A suicide car bomber and Taliban militants disguised in burqas attacked a compound housing hundreds of foreigners in the Afghan capital on Wednesday, officials and witnesses said. The Taliban said the attack was a response to President Barack Obama's surprise visit just hours earlier. (AP Photo/Ahmad Jamshid) Photo: Ahmad Jamshid, Associated Press

Afghan security men and NATO soldiers, right, are seen at the scene of militants attack in Kabul, Afghanistan, Wednesday, May 2, 2012. A suicide car bomber and Taliban militants disguised in burqas attacked a compound housing hundreds of foreigners in the Afghan capital on Wednesday, officials and witnesses said. The Taliban said the attack was a response to President Barack Obama's surprise visit just hours earlier. (AP Photo/Musadeq Sadeq) Photo: Musadeq Sadeq, Associated Press

The body of a victim is transported on the back of a police vehicle after militants' attack in Kabul, Afghanistan, Wednesday, May 2, 2012. A suicide car bomber and Taliban militants disguised in burqas attacked a compound housing hundreds of foreigners in the Afghan capital on Wednesday, officials and witnesses said. The Taliban said the attack was a response to U.S. President Barack Obama's surprise visit just hours earlier. (AP Photo/Musadeq Sadeq) Photo: Musadeq Sadeq, Associated Press

Damaged vehicles are seen at the scene of militants' attack in Kabul, Afghanistan, Wednesday, May 2, 2012. A suicide car bomber and Taliban militants disguised in burqas attacked a compound housing hundreds of foreigners in the Afghan capital on Wednesday, officials and witnesses said. The Taliban said the attack was a response to U.S. President Barack Obama's surprise visit just hours earlier. (AP Photo/Musadeq Sadeq) Photo: Musadeq Sadeq, Associated Press

Smoke comes out from a compound after it was attacked by militants in Kabul, Afghanistan, Wednesday, May 2, 2012. A suicide car bomber and Taliban militants disguised in burqas attacked the compound housing hundreds of foreigners in the Afghan capital on Wednesday, officials and witnesses said. The Taliban said the attack was a response to U.S. President Barack Obama's surprise visit just hours earlier. (AP Photo/Musadeq Sadeq) Photo: Musadeq Sadeq, Associated Press

A French soldier part of the NATO forces walks on debris after the compound was attacked by militants in Kabul, Afghanistan, Wednesday, May 2, 2012. A suicide car bomber and Taliban militants disguised in burqas attacked a compound housing hundreds of foreigners in the Afghan capital on Wednesday, officials and witnesses said. The Taliban said the attack was a response to President Barack Obama's surprise visit just hours earlier. (AP Photo/Ahmad Jamshid) Photo: Ahmad Jamshid, Associated Press

Afghan investigation team members assess the damage caused at the scene of a militant attack in Kabul, Afghanistan, Wednesday, May 2, 2012. A suicide car bomber and Taliban militants disguised in burqas attacked a compound housing hundreds of foreigners in the Afghan capital on Wednesday, officials and witnesses said. The Taliban said the attack was a response to President Barack Obama's surprise visit just hours earlier. (AP Photo/Ahmad Jamshid) Photo: Ahmad Jamshid, Associated Press

Pedestrians walk past the scene of a militant attack in Kabul, Afghanistan, Wednesday, May 2, 2012.A suicide car bomber and Taliban militants disguised in burqas attacked a compound housing hundreds of foreigners in the Afghan capital on Wednesday, officials and witnesses said. The Taliban said the attack was a response to President Barack Obama's surprise visit just hours earlier. (AP Photo/Ahmad Jamshid) Photo: Ahmad Jamshid, Associated Press

Afghan and NATO forces, including a member of the French contingent, right, assess damag caused at the scene of a militant attack in Kabul, Afghanistan, Wednesday, May 2, 2012. A suicide car bomber and Taliban militants disguised in burqas attacked a compound housing hundreds of foreigners in the Afghan capital on Wednesday, officials and witnesses said. The Taliban said the attack was a response to President Barack Obama's surprise visit just hours earlier. (AP Photo/Ahmad Jamshid) Photo: Ahmad Jamshid, Associated Press