China is a target of US hacking. The US is a target of Chinese hacking. And so on and so forth for any other country's names you can swap in or any other intelligence gathering mechanism you can replace "hacking" with.
One part of this story that has always seemed baffling is his shock that espionage, the act of stealing secrets or convincing someone to betray their oaths and steal secrets for you, requires some less-than-moral activities.
And by disclosing that he possesses documents that he says describe U.S. hacking against China, he appeared to be trying to win support from the Chinese government.
This seems to be transitioning from leaking to let Americans know how their civil rights are being violated into something else.