Should Edward Snowden Be Celebrated or Condemned?

Edward Snowden was a NSA contractor who took information that showed that the NSA is spying on all of us. Now he is in Russia, a man without a country. Should he be celebrated as a whistleblower who showed the world that the NSA is conducting illegal spying on U.S. citizens and citizens of all nations or be be condemned as traitor and send the rest of his life in exile or in prison?