This is something US officials have intimated, but Pfarrer goes a step further, asserting that “officers from Pakistan’s ISI ... periodically checked in on [bin Laden].”
There is no way that bin Laden “could have existed in Pakistan without the ISI’s compliance – it’s impossible,” Pfarrer says, referring to Pakistan's spy agency, the Inter Services Intelligence directorate.
Before the strike on bin Laden’s compound, many in the SEAL community believed that bin Laden was dead, but that “the ISI was concealing his death because they needed to keep the money flowing.”
But the entire time, Pfarrer writes, “The Pakistani ISI knew exactly where he was, but did not inform the United States. They continued to let Osama pace back and forth in his compound. They must have wondered, as did his family, if he were going insane."