Yen Jinchao, one of the farmers who signed the secret document in 1978. Jacob Goldstein/NPR hide caption

itoggle caption Jacob Goldstein/NPR

Anna Hu at the Ao Hua Farmers Market in Shanghai. After years of working long hours and eating only in restaurants, Hu has learned how to cook vegetables and eat more healthfully. Eliza Barclay/NPR hide caption

itoggle caption Eliza Barclay/NPR

A Chinese beekeeper harvests honey beside a rapeseed field in Anhui province. China is a major producer of honey and bee products. AFP/AFP/Getty Images hide caption

itoggle caption AFP/AFP/Getty Images

A worker monitors the loading of containers on to a ship at a harbor in China's Shandong province. Under a new U.S. law, Chinese food exporters will now have to share more food safety information with American food importers. STR/AFP/Getty Images hide caption

itoggle caption STR/AFP/Getty Images

An image from the Twitter-like Chinese site Weibo.com shows a composite image of the toddler's mother, Qu Feifei (left); her rescuer, Chen Xianmei (top right) and Wang Yue.

Weibo hide caption

itoggle caption Weibo