A House committee prepared a report to smear Snowden, but couldn't demonstrate anything bad about him. Snowden called it "accidentally exonerating".

It is full of falsehoods and distortions.

I speculate that the purpose of this report is to influence the general climate of public opinion against Snowden, and thus oppose the campaign asking Obama to pardon him.

Sad to say, that tactic sometimes works. I know someone who is generally sensible, who has been persuaded by the parade of lies to call Snowden a traitor.