Why balloons are now in public eye — and military crosshairs
Wafting across the United States and into the attention of an alarmed national and global public, a giant Chinese balloon has changed Americans' awareness of all the stuff floating in the air and how defense officials watch for it and respond. President Joe Biden said Thursday that the U.S. is updating its guidelines for monitoring and reacting to unknown aerial objects. Biden said officials suspect the three subsequent balloons were ordinary ones.