Fox News: CAIRO — Al Qaeda in the Arabian Peninsula on Monday claimed responsibility for the attack on a U.S. airliner bound for Detroit on Christmas Day, saying it was retaliation for a U.S. operation against the group in Yemen.

Federal authorities met Monday to reassess the U.S. system of terror watchlists to determine how to avoid the type of lapse that allowed a man with explosives to board the flight in Amsterdam even though he was flagged as a possible terrorist.
In a statement posted on the Internet, Al Qaeda in the Arabian Peninsula said 23-year-old Nigerian Umar Farouk Abdulmutallab coordinated with members of the group, an alliance of militants based in Saudi Arabia and Yemen.
Yemeni forces, helped by U.S. intelligence, carried out two airstrikes against Al Qaeda operatives in the country this month. The second one was a day before Abdulmutallab attempted to bring down a Northwest Airlines flight as it prepared to land in Detroit.
The group said Abdulmutallab used explosives manufactured by Al Qaeda members. “He managed to penetrate all devices and modern advanced technology and security checkpoints in international airports bravely without fear of death,” the group said in the statement, “relying on God and defying the large myth of American and international intelligence, and exposing how fragile they are…