With a mix of new technology and old fashioned snooping, China has built an extraordinary system of mass surveillance to monitor its Uighur minority. From collecting DNA samples to tracking religious habits and even individual electricity use, China appears to be building a vast security database to control the 13 million Uighurs that live in its western Xinjiang province. On this edition of Global Journalist, a look at the vast surveillance program that underpins China's "Strike Hard Against