Asem Haroon arrived in New Jersey as a stowaway on an Italian freighter and spent two weeks last year in a warehouse before he was discovered.

Republican Peter King, Chair of the House Homeland Security Committee, said: “This is very alarming and it’s very serious that someone could stowaway and get off the ship in a secure area of the port and then go to another part of the port and live in a building. Just think if he had been a terrorist and had any type of explosive device, what he would have been capable of doing.”

It’s not really clear just yet who exactly 26-year-old Asem Haroon is. He originally told authorities that he’s Iraqi and fought as an insurgent against US soldiers in Fallujah. A bit of digging, though, indicated he’s really Egyptian—although he has no known ties to the Taliban or Al Qaeda.