Fifty years ago this May, 13 people boarded a bus in Washington, D.C. The Freedom Riders, as they are called, challenged segregation on buses and in waiting rooms throughout the South. Some of those riders are using their experiences to motivate students today — to show them that the actions of one person can make a difference.
Joan Trumpauer Mulholland stood alongside her fellow Freedom Riders staring at a picture of a black man on a bus who is watching two National Guardsmen.
"There's Dave Dennis," she says, "looking up at the guys with the bayonets."