The huge, high-altitude Chinese balloon spotted over Montana yesterday continues to drift across the U.S. And with accusations from the Pentagon that it's spying on sensitive military sites, Secretary of State Antony Blinken abruptly canceled a high-stakes Beijing trip meant to ease U.S.-China tensions.

China continues to deny the balloon is being used for surveillance, claiming that it's for weather research and blew off course. 

For more, KCBS Radio's Bret Burkhart and Patti Reising spoke with Robert Dally, Director of the Wilson Center’s Kissinger Institute on China and the United States