They may phone home, but it could be to Beijing. That’s the assessment of a US intelligence report on UFOs, which attributes many military sightings of unknown flying craft to foreign surveillance drones or airborne waste, the New York Times reported. The latest revelations are contained in a classified update to a report last year that investigated 144 UFO sightings by US government personnel between 2004 and 2021, sources told the newspaper. That update is expected to be given to Congress Monday. The sources, who spoke to the Times on the condition of anonymity, said that several instances of unknown…