From ABC News:

In 2009, the FBI received an intelligence tip that an Iraqi refugee in Bowling Green, Kentucky, named Waad Ramadan Alwan might by sympathetic to insurgents in his homeland, which he allegedly fled to avoid persecution or death. But as agents began monitoring Alwan and recruited an undercover informant to befriend him, they came to the startling conclusion that Alwan himself had been a terrorist back in Iraq and was now gleefully boasting about having targeted American troops in sniper and bomb attacks. He said he had American G.I.s “for lunch and dinner.”