Preparing for the worst

One survivor of the Wenchuan earthquake is teaching young people about disaster preparedness at a learning center in Chengdu. Li Yingxue reports.

Ten years ago, on the afternoon of May 12, 18-year-old Dai Guohong was sitting in his classroom when a crack suddenly emerged, splitting open the floor in front of the blackboard.

Dai watched as his teacher fell into the crack, and a few seconds later, he watched his own legs were also sucked into the crack beneath his feet. The crack then shut abruptly, leaving Dai's legs stuck in the middle. Unable to wrestle free, Dai tried to grab the desk and chair near him to make more room as the lights and ceiling began to fall onto him.