NEW YORK - Seaman Apprentice Christyan Marzullo, stationed aboard the Coast Guard Cutter Tiger Shark, looks on as a crew from Union County Police Marine Unit, from Union County, N.J., conducts a screening of a vessel near the Verrazano Narrows Bridge, N.Y., July 18, 2012. The Coast Guard participated with state and local agencies in the radiation detection exercise screening vessels as they transited into the Verrazano Narrows. U.S. Coast Guard photo by Petty Officer 2nd Class Jetta H. Disco.