What's the Purpose of the Twitter Tag?

The document says China presents the broadest, most active, and most persistent threat to both government and private sector networks. "I didn't expect the US government to call out China in a very public document so blatantly," CNN's John Defterios said. If you were putting together a document like this, whether it's for a client or U.S. government, would you highlight a potential actor? He was surprised as well that they were kind of highlighted here.