An anonymous reader writes "News from Free Tibet 2008 that internationally known artist, technologist and co-founder of the Graffiti Research Lab, James Powderly, was detained in Beijing early on August 19th while preparing to debut a new work and technology of protest, the L.A.S.E.R. Stencil. According to a Twitter message received yesterday by Students for a Free Tibet at approximately 5 pm Beijing Standard Time, Powderly had been detained by Chinese authorities at 3 am. His current whereabouts remain unknown. Powderly was the inventor of throwies."
(Powderly's detention was also mentioned at Make Magazine's blog