Chinese artist Ai Weiwei is as well known for his political activism as for his art. Mary Ann Sieghart profiles the man who designed the 'Bird's Nest' Olympic stadium.
In the week that artist Ai Weiwei was detained by the Chinese authorities, Mary Ann Sieghart profiles the outspoken designer of the 'Bird's Nest' Olympics stadium.
Reporter - Mary Ann Sieghart
Producer - Ben Crighton
(The programme includes material from Alison Klayman's documentary: Ai Weiwei - Never Sorry).