Homeland Security is deploying X-ray scanners to inspect interior of vehicles crossing the border, according to documents obtained by a privacy group, raising new concerns about cancer and privacy risks.
University of California professor says Obama administration claim that scanners are safe is based on "many misconceptions." He and his colleagues are preparing a response.
roundup Airport body scanners leave little to the imagination. Also: DreamWorks animators bring zoo animals to life, and Yahoo looks to bring about easier photo sharing.