rged as a key technology for getting online, the links for network backbones and leading-edge scientific applica- tions require the blazing performance of wired, optical networks. The $6.7 million DRAGON testbed, deployed by the University of Maryland, Univer- sity of Southern California (USC), and George Mason University, will advance networking architecture research and bring about the intelligent control of optical transport networks. A $3.5 million optical testbed deployed by the University of Virginia, Oak Ridge National Laboratory, the City University of New York's City College, and North Carolina State University will allow development and testing of cutting-edge science applications. For networking research that requires the most realistic networked envi- ronments, two additional projects totaling $8.8 million will support ongoing testbed activities. In the first such project, the University of Utah and the THE UNBLINKING EYE-SECURITY AND SURVEILLANCE University of Wisconsin, Madison, will link Utah's Netbed and the Wisconsin Advanced Internet Laboratory in a testbed that can emulate more than 150,000 wired and wireless connections between tiny wireless sensors, personal computers, routers, and high-end computing clusters. The second ongoing testbed activity, PlanetLab, is being supported by NSF awards to Princeton University, the University of Washington, and UC Berkeley. PlanetLab is a worldwide network "overlay" that runs on top of, but doesn't disrupt, existing networks and lets networking researchers con- duct experiments at the scale of, and with the unpredictable behavior of, the global Internet. 7.2 LOCATION-BASED PRIVACY SOFTWARE Location-based services promise custom-tailored access to a rapidly increas- ing number of connected activities. Yet existing location-based services don't support the possibility that a user's willingness to share location data may depend on a range of factors, including recent and current activities, time of day, and who is requesting the data-in other words, an indivi