Of course there aren’t any space aliens or flying saucer wreckage at Area 51; all that’s still down in Roswell NM!
Back when Obama first got elected, I hoped he’d take a brief break from closing Gitmo and ending warrantless wiretapping and Don’t Ask Don’t Tell to have some fun releasing a press announcement about UFOs and Area 51, because as President you can do things like that just for fun. Doesn’t matter if the announcement is to Sternly Deny Everything, Wildly Admit Absolutely Everything, or actually tell the truth (lots of toxic waste from spy plane development), you can have fun either way.