Tuesday night, a passenger tried to open an emergency door in the middle of a flight from Orlando to Boston. It was the fourth scare in the skies in just three days.
This past Sunday, another unruly passenger tried to open the door on a Continental flight from Houston to Chicago. That same day, a Delta flight to San Diego diverted to Albuquerque after a flight attendant found a napkin with the word "bomb" written on it in the plane's bathroom.
Then on Monday, Yemeni national Rageh Al Murisi allegedly tried to enter the cockpit of a San Francisco-bound American Airlines flight. Police said he rammed the door with his shoulder while shouting "Allah Akbar," or God is great.