An official says al Qaeda bombmaker Abu Asiri is behind the latest efforts . Security official says terrorists have shown renewed interest in implanting bombs . Airlines and overseas airports were briefed last week . People flying from international locations to the airport may notice additional activity .
An official says al Qaeda bombmaker Ibrahim Asiri is behind the latest efforts . Security official says terrorists have shown renewed interest in implanting explosives . Airlines and overseas allies were briefed last week . Passengers flying from international locations to the U.S. may notice additional security .