In a strong affront to the Chinese government’s attempt to censor artists and internet users, fans of the artist Ai Weiwei have raised more than $830,000 in three days through social media to help the artist fight a $2.4 million tax bill from the state. Weiwei, who was imprisoned for 81 days this spring without any charges filed against him, has been a target of the Chinese government for his politically outspoken art.