71 SPECIALSECTION could escape from a lab and cause a human pandemic, or that revealing details about the research could inadvertently aid terrorists seeking a bioweapon. They asked the National Science Advisory Board for Biosecurity, set up after the 2001 anthrax attacks, to review the H5N1 studies. It initially recommended that the papers be published only if journal editors deleted key metho...

We present the design and analysis of an optical cloak of invisibility with non-magnetic metamaterials. The general recipe for the implementation of such a device is provided. The cloaking performance is illustrated with finite-element simulations. ©2007 Optical Society of America OCIS codes: (230.3990) Microstructure devices; (160.4760) Optical properties; (999.9999) Meta-materials

Recent studies show the remarkable power of fine-grained information disclosed by users on social network sites to infer users' personal characteristics via predictive modeling. Similar fine-grained data are being used successfully in other commercial applications. In response, attention is turning increasingly to the transparency that organizations provide to users as to what inferences are dr...