Failed Xmas attack raises new security concerns

WASHINGTON, Dec 26 (AP): United States (US) counterterrorism officials are scrambling to assess a potential new threat from an explosive mixture that evaded detection aboard a Detroit-bound airliner but failed to bring down the plane.
Multiple law enforcement officials said the suspected attacker - identified as a Nigerian man named Umar Farouk Abdul Mutallab - claimed to have acted on instructions from al-Qaida to detonate the explosive device over U.S. soil.