Lief, do you want to denounce Chavez while you continue to submit to imperialism? Might as well do it now since you started getting patronage from Obama.
You're a fool if you think Manning or Snowden have accomplished anything against American imperialism. All they've done is possibly endanger innocent people and win over hordes of paranoid middle-class white guys on the internet who have read the Wikipedia plot summary of 1984.
You haven't come close to demonstrating how Manning hurt anyone. Even pro-war people don't generally endorse atrocities and Americans have the right to know what's being done in the name of America.
I guess you could argue Snowden hurt us if there's a terrorist attack in a few years that would have been prevented if PRISM hadn't been revealed, but that would be very tough to prove.