Among the questions is how a contract employee at a distant NSA satellite office was able to obtain a copy of an order from the Foreign Intelligence Surveillance Court, a highly classified document that would presumably be sealed from most employees and of little use to someone in his position.

A former senior NSA official said that the number of agency officials with access to such court orders is “maybe 30 or maybe 40. Not large numbers.”…

Officials questioned some of Snowden’s assertions in his interview with the Guardian, saying that several of his claims seemed exaggerated. Among them were assertions that he could order wiretaps on anyone from “a federal judge to even the president.”

“When he said he had access to every CIA station around the world, he’s lying,” said a former senior agency official, who added that information is so closely compartmented that only a handful of top-ranking executives at the agency could access it.