5-27-14 - (MSNBC) - On Tuesday's NBC Nightly News, Brian Williams aired the first excerpts from his exclusive interview with former NSA contractor Edward Snowden. In the clip, Snowden described himself as a 21st-century "spy," who has more experience and expertise than the U.S. government has led people to believe. "I am a technical expert. I don't work with people. I don't recruit agents. What I do is I put systems to work for the United States," Snowden said, using the present tense despite the fact that he has been living in exile in Russia after leaking classified documents. "And I've done that at all levels from the bottom on the ground all the way to the top."