Midair security scares on 3 U.S. flights

SAN FRANCISCO - Crew members and passengers wrestled a 28-year-old man to the cabin floor after he began pounding on the cockpit as an American Airlines flight approached San Francisco.... yelling unintelligibly... 28-year-old Rageit Almurisi. He carried a Yemen passport, but it wasn't clear if his nationality was also Yemeni... no clear or known ties to terrorism.... A Continental Airlines flight from Houston to Chicago diverted in St. Louis after a 34-year-old man from Illinois tried to open a plane door during the flight... a Delta Air Lines flight from Detroit to San Diego was landed instead in Albuquerque, New Mexico, because of a security scare but authorities found "no suspicious devices" on the plane ... declined to clarify the nature of the "potential security threat" ...