A @BarackObama sandwich-selfie at the @WhiteHouse, earlier today with Bill Nye @TheScienceGuy pic.twitter.com/rEdWtoh2zx— Neil deGrasse Tyson (@neiltyson) March 1, 2014
A @BarackObama sandwich-selfie at the @WhiteHouse, earlier today with Bill Nye @TheScienceGuy pic.twitter.com/rEdWtoh2zx