“A United States citizen was briefly arrested at Islamabad airport on Friday for attempting to board a plane carrying ammunition, Pakistan officials said, in the second such case since May. The man, who was identified by police and airport officials as a US security trainer, was passing through security checks at Benazir Bhutto International Airport when he was caught with 15 rounds for a 9mm handgun.”
Source: US citizen briefly held at Pakistan airport | GulfNews.com