 Downs ran nightly screenings of the broadcast at his home in Rome to packed houses, mostly consisting of Americans, including members of the State Department and military attachés.On November 2, 1952, Downs made a somber appearance with Edward R. Murrow on "See It Now" after the Ivy Mike operation, the first successful testing of a thermonuclear weapon.It marked the closest the Doomsday Clock came to reaching midnight.