Tonight host looks into speculation, study and cover-ups about unidentified flying objects in the US

HBOOrdinary Americans, military pilots, and even former President Jimmy Carter have claimed to have seen unidentified flying objects in the sky over the past 77 years, and on Sunday night, John Oliver said “it’s both promising and long overdue” to see the U.

"It's both promising and long overdue to see people approaching this issue soberly and scientifically and, perhaps most importantly, boringly," Oliver concludes. "And I know that is hard — this is an area where it's easy to fall into one of two camps: hardcore sceptics who roll their eyes at the whole subject,