'The world has let this happen': Wu'er Kaixi on Hong Kong's loss of freedoms

As a trial of former organisers of Hong Kong's Tiananmen vigils has concluded, FRANCE 24's Yuka Royer speaks with Wu'er Kaixi, one of the student leaders who led mass protests leading up to the brutal 1989 crackdown. Nearly 37 years since the tragedy, the exiled campaigner laments China's continued oppression of dissident voices and ethnic minorities.