Did Pakistani Intelligence Poison the CIA Station Chief After Bin Laden Raid?

In the weeks following the takedown of Osama bin Laden, the CIA station chief in Pakistan, Mark Kelton, came down with a mysterious ailment. It was so bad that at times he was doubled over in pain.

Unable to be treated in Pakistan, Kelton was sent home. But many of his colleagues and co workers at Langley and throughout the U.S. government speculated that Kelton had been poisoned by the ISI — the Inter-Services Intelligence agency.