Greenwald calls people out for defending Ellsberg and condemning Manning. Its an interesting read. Its important to recall that no one ever said Ellsberg wasn't guilty. Ellsberg got off on a mistrial. I think this is the key observation:

As Ellsberg himself makes clear, everything that is being said now to condemn Manning — everything – was widely said about Ellsberg at the time of his leak. Back then, Ellsberg was repeatedly accused of being a traitor, of violating his oath, of endangering America’s national security, of aiding its enemies, of taking the law into his own hands; he was smeared and had his sanity continuously called into question. Had it not been for the Nixon administration’s overzealous attempts to destroy him by breaking into the office of his psychiatrist — the primary act that caused the charges against Ellsberg to be dismissed on the grounds of government misconduct — there is a real possibility that Ellsberg would still be in a federal prison today. He’s viewed as a hero now only because the passage of time has proven the nobility of his act: it’s much easier to defend those who challenge and subvert political power retrospectively than it is to do so at the time.

The intellectual cowardice of Bradley Manning’s critics - Salon.com