UFO Update

   Just an update on the UFO phenomenon: since 1946 when I think the first UFO was sighted, in the intervening years - 56 of them - other than a million more "sightings" and a great deal of bad photography, not one atom of hard physical evidence has ever been produced to give credence to the idea that interplanet-travelling extraterrestrials actually exist. Let me repeat that: not one atom. And I don't mean atom figuratively. I mean not one actual atom.