Taken from Insight:
The U.S. intelligence community has determined that Beijing has developed and deployed a series of missiles that would give China second-strike nuclear capability in any confrontation with the United States. The determination of a sea-based deterrent is said to have significantly increased Beijing's threat to the United States.
China is preparing for battle and we have our thumbs up our asses. Pardon the language but there's no better way to put it.