From CIA Director Porter Goss in today’s NYT:

As a member of Congress in 1998, I sponsored the Intelligence Community Whistleblower Protection Act to ensure that current or former employees could petition Congress, after raising concerns within their respective agency, consistent with the need to protect classified information.
Exercising one’s rights under this act is an appropriate and responsible way to bring questionable practices to the attention of those in Congress charged with oversight of intelligence agencies. And it works. Government employees have used statutory procedures