China has put new focus on airships hovering in a part of the sky just before outer space. Although Beijing says they're scientific, analysts say the data helps the country develop advanced weapons.

FBI and State Department officials gave reporters an update on some of what the U.S. has learned so far about the balloon.

Secretary of State Antony Blinken called off his trip to China after the discovery of a Chinese "surveillance" balloon over the U.S. It's the latest setback in an increasingly fraught relationship.