"So before you start sending your naughty masterpieces around the world, take some time to get friendly with photo editing, software and apps," the book reads.
"One thing we have to consider, and we believe the intelligence community is considering as an explanation, is that these could be balloons tied to commercial or research entities and therefore totally benign," Kirby said.
A part of Montana airspace was temporarily closed due to a “radar anomaly,” then later reopened, after an unidentified object was shot down over Canada, the Federal Aviation Administration (FAA) said.
The U.S. shot down a fourth flying object Sunday afternoon at 20,000 feet above Michigan’s Lake Huron, the Pentagon said, underscoring its stepped-up defense of North American airspace following the discovery of a suspected Chinese spy balloon.
The U.S. military on Friday shot down an "object" flying in territorial waters over Alaska less than a week after an F-22 fighter jet shot down a Chinese spy balloon over the Atlantic.
President Joe Biden says he gave his authorization to shoot down a Chinese high altitude balloon a day after he was first briefed on the suspicious device, which was hovering over sensitive US military sites, but defense officials convinced him to wait until it was safe for people on the ground.
