On April 28th, intelligence analyst Russ Tice appeared at a press conference for the National Security Whistleblowers, where he told about how the NSA had harrassed him. On May 16, the NSA gave Tice his walking papers and lifted his security clearance.
[Tice's] problems started when he asked the agency to look into the activities of an employee he thought might be engaged in espionage. Instead, the NSA called him in for an emergency psychological evaluation, one of the usual procedures in blackballing an employee. He was duly determined to be crazy and put on administrative leave. Tice was later assigned to unload furniture from trucks at a warehouse, where he hurt his back. He also served an eight-month tour of duty in the NSA motor pool, where the analyst worked at maintaining the agency?s fleet of vehicles, gassing them up, cleaning them and checking the fluids, and driving NSA big shots around town.
Tice had done intelligence work for nearly 20 years with the Air Force, with Navy intelligence, and with the Defense Intelligence Agency, before landing at the NSA. He has conducted intelligence missions related to Kosovo, Afghanistan, the bombing of the USS Cole in Yemen, and the Iraq war. Most recently he was nominated for an award for outstanding service because of his work on Iraq. It has since been withdrawn, along with the security clearance.
There's more to the story, and James Ridgeway has it in this Village Voice article.