He hasn't committed any crimes. In most of the cases he has released documents, that were obtained by insiders who had legal authority to them. (Maybe not to publish them, but they weren't "hacked" per se). All Wikileaks has done is publish those documents. They would have to arrest and charge people within other news orgs who have, and will continue to, do the same thing bc it's news worthy. they can charge someone like Snowden bc he signed what amounts to an NDA and broke it with the govt. So a pardon for Snowden and Manning would make more sense.

im pretty sure he can...