Peter Eisler and Susan Page, USA TODAY 8:01 p.m. EDT June 16, 2013

In a roundtable discussion, a trio of former National Security Agency whistle-blowers tell USA TODAY that Edward Snowden succeeded where they failed.

When a National Security Agency contractor revealed top-secret details this month on the government's collection of Americans' phone and Internet records, one select group of intelligence veterans breathed a sigh of relief.

Thomas Drake, William Binney and J. Kirk Wiebe belong to a select fraternity: the NSA officials who paved the way.

For years, the three whistle-blowers had told anyone who would listen that the NSA collects huge swaths of communications data from U.S. citizens. They had spent decades in the top ranks of the agency, designing and managing the very data-collection systems they say have been turned against Americans. When they became convinced that fundamental constitutional rights were being violated, they complained first to their superiors, then to federal investigators, congressional oversight committees and, finally, to the news media.