In 1989, China cut the satellite feeds out of Beijing before the tanks rolled in. Every frame of the massacre that survived left the country as physical tape, hidden in luggage, hand-carried by strangers on flights to Hong Kong. That's how these tapes got out. A three-man ITN crew, correspondent Jeremy Thompson, cameraman Mick Deane, sound engineer Andy Rex, kept filming through the crackdown and the days after, when pointing a camera at a Beijing street was enough to get you detained. Photographers that week were hiding film in tea boxes and underwear just to get it past police. Faces on tape carried real weight back then. After June 4, state television ran crackdown footage on a loop and asked citizens to phone in the names of protesters they recognized. People visible in news reports got identified and arrested. Ninety minutes of raw rushes showing crowds in the street was a wanted list the regime hadn't processed yet. So the tapes sat in a London vault for 35 years. Inside China, the erasure mostly worked. When journalist Louisa Lim showed the Tank Man photo to 100 Beijing university students, only 15 recognized it. One of the most famous images of the 20th century, taken a few miles from their dorms, and 85 of them had never seen it. Mick Deane kept doing this job for another 24 years after Tiananmen. In August 2013 he was in Cairo filming Egyptian security forces clear a protest camp when a sniper shot and killed him. He was 61, doing the same work he'd done in Beijing. Thirty-five years later, the tapes he helped smuggle out are finally doing what he risked his life for.