There was military footage of unidentified flying objects that couldn’t be explained, and a decade of hidden funding in the defense budget. A Times investigation discovered a shadowy secret program at the Pentagon that looks at the potential threat of U.F.O.s.

Guests: Helene Cooper, who covers the Pentagon for The New York Times; Luis Elizondo, an intelligence officer who led the program inside the Pentagon. For more information on today’s episode, visit nytimes.com/thedaily.