2009 suspicions about Snowden slipped through the cracks ...

NYTIMES: WASHINGTON — Just as Edward J. Snowden was preparing to leave Geneva and a job as a C.I.A. technician in 2009, his supervisor wrote a derogatory report in his personnel file, noting a distinct change in the young man’s behavior and work habits, as well as a troubling suspicion,

The C.I.A. suspected that Mr. Snowden was trying to break into classified computer files to which he was not authorized to have access, and decided to send him home, according to two senior American officials.

But the red flags went unheeded. Mr. Snowden left the C.I.A. to become a contractor for the National Security Agency, and four years later he leaked thousands of classified documents. The supervisor’s cautionary note and the C.I.A.’s suspicions apparently were not forwarded to the N.S.A. or its contractors, and surfaced only after federal investigators began scrutinizing Mr. Snowden’s record once the documents began spilling out, intelligence and law enforcement officials said.

“It slipped through the cracks,” one veteran law enforcement official said of the report.

Spokesmen for the C.I.A., N.S.A. and F.B.I. all declined to comment on the precise nature of the warning and why it was not forwarded, citing the investigation into Mr. Snowden’s activities.

Half a dozen law enforcement, intelligence and Congressional officials with direct knowledge of the supervisor’s report were contacted for this article. All of the officials agreed to speak on the condition of anonymity because of the continuing criminal investigation.

In hindsight, officials said, the report by the C.I.A. supervisor and the agency’s suspicions might have been the first serious warnings of the disclosures to come, and the biggest missed opportunity to review Mr. Snowden’s top-secret clearance or at least put his future work at the N.S.A. under much greater scrutiny.

“The weakness of the system was if derogatory information came in, he could still keep his security clearance and move to another job, and the information wasn’t passed on,” said a Republican lawmaker who has been briefed on Mr. Snowden’s activities.

Mr. Snowden now lives in Moscow, where he surfaced this week for the first time since receiving temporary asylum from the Russian government over the summer. On Wednesday night, he met with four American whistle-blowers who have championed his case in the United States and who presented him with an award they said was given annually by a group of retired C.I.A. officers to members of the intelligence community “who exhibit integrity in intelligence.”

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