He is an architect / artist / activist from china. he explained about today of China in his first exhibition in Mori Art Museum ,Jpn.
He said---- "I'm fighting for freedom of speech. I never settle for less. I don't engage in negotiation."
His prasentations are so symbolical and minimal that it turned the eyes of too many people, and he designed the 'birds nest'. but on the other side, his blog and twitter accounts are shut down by the authorities for his fierce criticism of the Games.
from these explanation will be understanding , his existence is afreided by the governments of China.