Glenn Greenwald Presents His Book 'No Place to Hide: Edward Snowden, The NSA, And The U.S. Surveillance State' [Getty Images]

MILAN, ITALY - MAY 26: Glenn Greenwald speaks during the presentation of his book 'No Place to Hide: Edward Snowden, The NSA, And The U.S. Surveillance State' on May 26, 2014 in Milan, Italy. Greenwald published National Security Agency contractor Edward Snowden's leaks of secret U.S. government information as a columnist for The Guardian US. A former constitutional lawyer who had frequently written about civil liberties, Greenwald wrote ''No Place to Hide: Edward Snowden, the NSA, and the U.S. Surveillance State'' about his pursuit of the Snowden story and the fallout from the information he provided. (Photo by Pier Marco Tacca/Getty Images)

Getty Images Entertainment Pier Marco Tacca