That's what Woodward's book is saying...that he told the Chinese that he would do it.Did he do that?
Obviously there wasn't one to ever warn them about...however the issue is that he would, and said he would. Is that a crime? I don't know...but certianly shows that he has a willingness to undermine the chain of command, and what sounds like a willingness to commit a coup...and should resign from office, as that makes him unfit.