Some former CIA officials said they were troubled by aspects of Snowden’s background, at least as he described it to The Post and the Guardian.

For instance, Snowden said he did not have a high school diploma. One former CIA official said that it was extremely unusual for the agency to have hired someone with such thin academic credentials, particularly for a technical job, and that the terms Snowden used to describe his agency positions did not match internal job descriptions.

Snowden’s claim to have been placed under diplomatic cover for a position in Switzerland after an apparently brief stint at the CIA as a systems administrator also raised suspicion. “I just have never heard of anyone being hired with so little academic credentials,” the former CIA official said. The agency does employ technical specialists in overseas stations, the former official said, “but their breadth of experience is huge, and they tend not to start out as systems administrators.”

A former senior U.S. intelligence official cited other puzzling aspects of Snowden’s account, questioning why a contractor for Booz Allen at an NSA facility in Hawaii would have access to something as sensitive as a court order from the Foreign Intelligence Surveillance Court.

“I don’t know why he would have had access to those . . . orders out in Hawaii,” the former official said.