A man trained as a pilot at a Lawrenceville airport three years ago raised an international terror alert this week. He was found in Britain on Friday, the FBI said. Zayead Christopher Hajaig, a 35-year-old British national, "remains a person of interest" although he has been located, said Steve Emmett, an FBI spokesman in Atlanta. FBI officials released little information about Hajaig on Friday. They would not say whether he had been detained or how he had been located. Earlier this week, authorities issued a "special alert bulletin" warning airports about Hajaig, who took flight lessons at Astron Enterprises at...