[21twelve]

Has anyone figured out what that was all about when the flying saucers were at D.C. all those years ago?

[ETL]

"Apparently benign alien emissaries show mankind how to end the misery
of war, plague and famine. The Kanamits, nine-foot tall aliens, arrive on
Earth with one lofty goal: To Serve Man. They end war, they end famine.
They make the military wonder: what's the catch?"