A terminal at Tampa International Airport was evacuated for about three hours Tuesday when a passenger grabbed his carry-on luggage from a checkpoint and fled after a security official thought he saw a pistol in the bag. It was one of several security incidents at airports in the region in recent days.Twenty-four flights were delayed at Tampa and about 1,000 people were evacuated from the satellite terminal during the search for the man, airport officials said. He was not caught.Elsewhere in Florida, a woman was arrested at Miami International Airport after she crashed her pickup truck through a security gate on Monday, scaled a 10-foot barbed wire fence surrounding a restricted area and boarded a plane that was being cleaned in a hangar.According to the arrest report, members of the cleaning crew described Tanya Polese as "hysterical" and said she believed she was fleeing from people who wanted to kill her.Polese, 31, was ordered jailed without bail pending a psychological evaluation.Miami police also arrested a man who they said assaulted flight attendants and screamed obscenities on an American Airlines flight from Los Angeles late Monday.The man, whose identity was not released, appeared to be under the influence of alcohol and prescription drugs, said airline spokeswoman Mary Frances Fagan.Officials in Louisiana said a man carried eight knives and two pairs of scissors past a checkpoint Sunday at the New Orleans airport, then was allowed to board a plane before he was taken into custody. Most of the knives and scissors were found when the man was picked for a random search at the gate, and the others were found after he was taken off the plane, said Acting U.S. Attorney Jim Letten."There is no way I can whitewash this. I and other law enforcement officials are profoundly disturbed about this," Letten said.Albert Silvarian, 42, was charged with attempting to board an aircraft with dangerous weapons, which carries up to 10 years in prison and a $250,000 fine. He did not immediately enter a plea.The knives and all but one pair of scissors were still in store packaging, officials said. "This is clearly not an act of terrorism," said defense lawyer Ralph Capitelli Leo/ORD