- An F-22 downed a Chinese spy balloon on Saturday with a single AIM-9X Sidewinder missile.
- But the Pentagon wasn't sure if the missile would work when the pilot fired it, a top commander said.
- The debris from the balloon plummeted over 60,000 feet into waters off the coast of South Carolina.
A US Air Force F-22 fighter jet fired a single air-to-air missile at a Chinese surveillance balloon over the weekend, sending the system crashing into the Atlantic Ocean in a moment of heightened tension between Washington and Beijing.