HONG KONG | By Stella Tsang and James Pomfret

A printout showing Lee Bo, specializing in publications critical of China, and four other colleagues who went missing, is displayed outside a bookstore at Causeway Bay shopping district in Hong Kong, China January 6, 2016. REUTERS/Bobby Yip
Four of the five Hong Kong booksellers who went missing in October appeared on Chinese television confirming for the first time they’d been detained for “illegal book trading” in mainland China. Continue reading