Artist Says China Has Unplugged 'Weiweicam' Ai Weiwei, the rebellious Chinese artist, says the authorities have shut down a Web site on which he was streaming live video from four cameras in his home. The online project, at weiweicam.com, lasted just 46 hours. Mr. Ai, one of the Chinese government's harshest critics, was detained without charge for 81 days last year; he started his self-surveillance project to commemorate the one-year anniversary of the start of his detention. Read more at the Arts Beat blog