HARTFORD, Conn. (AP) — The U.S. Marine Corps dog tag being peddled by a war artifacts seller caught Charles Thompson’s eye when he was vacationing with friends in Vietnam. He plunked down the equivalent of about $3 for the piece of metal, with the hope of returning it — he assumed — to the family of the fallen Marine.After hours of Internet searching over the course of the next year, the resident of Weybridge, England, was pleasantly surprised to learn the Marine was still alive.On Thursday morning, Thompson will give the tag back to Richard Tilghman Jr., a New Canaan, Connecticut, resident who lost it in Vietnam in 1968. The exchange will take place in New York City on a Fox News Channel show.“I’m looking forward to it,” Tilghman, 71, told The Associated Press.