What has the U.S. learned from the Snowden leaks? PBS News(02)

What has the U.S. learned from the Snowden leaks? PBS News(02)

Video Screenshot Gallery: Snowden Leaks

Edward Snowden leaks: NSA 'debates' amnesty - BBC News
The Snowden leaks explained - BBC News
What has the U.S. learned from the Snowden leaks? PBS News