Jars of peanut butter stashed in a traveler’s checked luggage at a New York City airport triggered an alarm which resulted in his arrest. On Thursday, Dec. 22 , TSA officers at John F. Kennedy International Airport opened the checked bag after it set off an alarm when passing through an X-ray, according to a statement from the agency. They removed two jars of JIF creamy peanut butter from the luggage, each of which contained pieces of a dismantled semi-automatic handgun “artfully concealed inside,” the agency stated. The parts, including a magazine loaded with .22 caliber bullets, were encased in...