Secret Service anti-drone test accidentally sent D.C. flights urgent cockpit alerts recommending evasive action a month after fatal crash

The head of the Federal Aviation Administration told Congress during a hearing Thursday about a midair collision over Washington, D.C., that killed 67 people that the agency must do more to ensure flying remains safe.

The FAA's artificial intelligence-led review aimed at identifying safety threats at other airports with similar helicopter-airplane congestion should be finished in a couple weeks, said Chris Rocheleau, the agency’s acting administrator.

During the hearing, the...