American Air jet diverted in "security incident" = = Wednesday September 11, 3:19 PM EDT = HOUSTON, Sept 11 (Reuters) - An American Airlines (AMR) jet bound for Dal= las returned to Houston Intercontinental Airport shortly after takeoff on= Wednesday because of what an airlines spokesman called "a security incid= ent" on board. An FBI spokesman told a Houston television station there may have been an= attempted hijacking on board. "It appears to be an attempted hijacking, but I do not have that confirme= d," FBI agent Robert Doguim told KHOU-TV in Houston. News reports said passengers reported seeing two men in the cabin with wh= at appeared to be a weapon, possibly a folding knife. The reports said th= e men were taken into custody. American spokesman Gus Whitcomb told Reuters that two U.S. air marshalls = were on the flight, as were four crew members and 50 passengers. = =A92002 Reuters Limited. = Roger EWROPS