The FBI is investigating how a stun gun managed to make it through security at Boston’s Logan International Airport and onto a JetBlue flight to Newark Liberty International Airport. A Striker 1800 stun gun was found by a cleaning crew inside the seat pocket of JetBlue Flight 1179 after arrival. The workers called the Port Authority police in New Jersey, which notified the Transportation Safety Administration. Authorities have started looking for everyone who had access to the seat pocket.