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Associated Press
In this photo taken Tuesday, Jan. 29, 2013, University of Southern California Institute for Creative Technologies, associate director for graphics research, Paul Debevec, explains the Lighting Stage X, a LED-filled sphere used to help create realistic virtual characters at the Graphics Lab in Playa Vista area of Los Angeles. The "Virtual Survivor Visualization," a collaboration with the Shoah Foundation used the Lighting Stage X to digitize aging Holocaust survivors to create three-dimensional holograms that would not only be able to tell their stories to future generations but to engage in dialogue with them. (AP Photo/Damian Dovarganes)

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