** FILE ** Somalis observe the remains of a vehicle used in a car bomb attack in the capital Mogadishu, Somalia in this Wednesday, Feb. 8, 2012 file photo, an attack claimed by a spokesman for Somalia's al-Shabab Islamist insurgency. Al-Shabab have claimed responsibility for the gun and grenade attack on a shopping mall in Nairobi, Kenya, Saturday, Sept 21, which has left dozens dead and wounded, apparently in retaliation for Kenya's military participation in peace-keeping efforts in Somalia.(AP Photo/Farah Abdi Warsameh, file)

Photo by: Farah Abdi Warsameh

** FILE ** Somalis observe the remains of a vehicle used in a car bomb attack in the capital Mogadishu, Somalia in this Wednesday, Feb. 8, 2012 file photo, an attack claimed by a spokesman for Somalia's al-Shabab Islamist insurgency. Al-Shabab have claimed responsibility for the gun and grenade attack on a shopping mall in Nairobi, Kenya, Saturday, Sept 21, which has left dozens dead and wounded, apparently in retaliation for Kenya's military participation in peace-keeping efforts in Somalia.(AP Photo/Farah Abdi Warsameh, file)