The FBI on Tuesday morning arrested a Fairfax, Va., man charged with acting as an unregistered, paid agent of the Pakistani intelligence services for twenty years.

Syed Ghulam Nabi Fai, 62, a U.S. citizen, "is accused of a decades-long scheme with one purpose--to hide Pakistan's involvement behind his efforts to influence the U.S. government's position on Kashmir," said Neil MacBride, U.S. attorney for the Eastern District of Virginia, in an FBI press release.