NEW: The FBI says the man accused of setting off an incendiary device outside a federal building in New York City has been identified as 43-year-old former U.S.

NEW: The FBI says the man accused of setting off an incendiary device outside a federal building in New York City has been identified as 43-year-old former U.S. Army soldier Andrew Arrabaca. Arrabaca served from 2001 to 2005 as a Patriot missile systems mechanic, according to the FBI. The FBI says…