National attention is focused on the three unidentified flying objects recently shot down by the U.S. military. Still seeking answers as to who launched those UFOs and why, we must also remain focused on the singular espionage threat posed by Communist China . The Chinese spy balloon downed off South Carolina on Feb. 4 is just a metaphor for Beijing's vast intelligence apparatus. And unlike the balloon, that apparatus is very far from deflated. For a start, it's important to single out the "Communist" when it comes to Chinese intelligence activities. While the U.S. military serves under authorities of constitutional...