Not since Daniel Ellsberg leaked the Pentagon Papers during the Vietnam War has a trove of documents revealing the inner workings and thinking of the U.S. government so changed the conversation.В  In Ellsbergs case, that conversation was transformed only in the United States.В  Snowden has changed it worldwide.В  From six-year-olds to Angela Merkel, who hasnt been thinking about the staggering ambitions of the National Security Agency, about its urge to create the first global security state in history and so step beyond even the most fervid dreams of the totalitarian regimes of the last century?В  And who hasnt been struck by how close the agency has actually come to sweeping up the communications of the whole planet?