evidence: UFOs? Airborne objects? What we know about 4 recent shootdowns [...] Kirby also said all three objects most recently shot down over the U.S. and Canada were determined not to pose a direct threat to people on the ground. They were also found to be uncrewed and to have limited abilities, from a lack of communication signals to a lack of obvious propulsion capability. [...] Starting with the most recent object, here's what we know so far about these takedowns, drawing on U.S. and Canadian officials' statements: