Why China's railways won't take your kids alone

China's high speed rail network is the largest in the world, and it is faster and more connected than ever. When parents started asking if they could hand off their children to station staff the way they do with flight attendants, the railway gave a firm answer: no. The decision seemed simple, but the reasoning behind it offers a clear look at how China runs its railways and who it holds responsible for passenger safety. On the show: Fei Fei, Steve & Yushun