“After what were likely valid sightings of possibly hobbyist drones, every aircraft can then become suspicious,” Direen said.

Experts who study drones say it can be tough to tell from miles away. But there are clues. A light in the sky at night can easily be misinterpreted, one expert says. Dozens of mysterious nighttime ...

A new high-powered microwave system that can knock swarms of drones out of the sky at once is going to "touch every aspect of warfare," according to Epirus founder, Joe Lonsdale. "It’s kind of ...