The flying pips, shattered shells and wet shrapnel still haunt farmer Liu Mingsuo after an effort to chemically boost his fruit crop went spectacularly wrong. guardian
Ai Weiwei is under "supervision"
The Solomon R. Guggenheim Foundation and the International Council of Museums, who organised petitions, said they had collected more than 90,000 signatures calling for the release of Ai Weiwei.
On 13 April 2011, a group of European intellectuals led by Václav Havel had issued an open letter to Wen Jiabao, condemning the arrest and demanding the immediate release of Ai Weiwei. The signatories include Ivan Klima, Jiří Gruša, Jáchym Topol, Elfriede Jelinek, Adam Michnik, Adam Zagajewski, Helmuth Frauendorfer; Bei Lin (Chinese:贝岭), a Chinese poet in exile drafted and also signed the open letter.
On 16 May 2011, the Chinese authorities allowed his wife to briefly visit him. After the colloquy, Liu Xiaoyuan, his attorney and personal friend, reported that the wife had found the artist in good physical condition not held in a prison or hospital but in something she guessed. "...it’s a form of house arrest, under supervision." Furthermore there are news reports that Ai Weiwei has been receiving requested treatments for his pathologies (diabetes and hypertension). wikipedia
Note: lots of other intellectuals and artists still jailed in China.