"It was a wonderful trip over here. We took the helicopter. We landed in Roswell. I announced to people when I landed that I had come in peace. (Laughter.) Let me tell you, there are more 9- and 10-year-old boys around the country -- when I meet them, they ask me, "Have you been to Roswell, and is it true what they say?" (Laughter.) And I tell them, "If I told you I'd have to kill you." So -- and their eyes get all big. (Laughter.) So we're going to keep our secrets here."
Keith's note: Oops. The White House (OSTP) likes this - on Twitter