Art keller - Former CIA case officer.

Art Keller is a former CIA case officer in the
Counter-Proliferation Division, the part of the CIA charged with
spying on and sabotaging Iran’s nuclear program. He's done
commentary for CNN, CBS, The News Hour on PBS, Newsmax Magazine,
and the National Geographic Channel. He’s also the author of the
just released spy novel (espionage thriller) about the CIA and
Iran, Hollow Strength.