Watch Clip

Day 1: LeRoy Ford
2m 38s
LeRoy Ford talks about the speakers of Day 1 of the 2011 Student Freedom Ride.
American Experience, TV's most-watched history series, brings to life the compelling stories from our past that inform our understanding of the world today.
Video description: Before the days of NASA, scientists and researchers at the U.S. Air Force were testing the limits of how high man could fly. Though largely forgotten today, balloonists were the first to venture into the frozen near-vacuum on the edge of our world, exploring the very limits of human physiology and human ingenuity in this lethal realm. "Space Men" premieres March 1 at 9/8c on PBS.