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I just want to point out that the CNN hologram wasn't in studio. The video of the reporter was captured by a few HD cams in a tent on location. Those feeds where sent to CNN HQ and when the reporter was on air. The cams in studio matched motion with the ones in the tent. The tent image was then overlaced ontop of the video from the studio, and sent out to your TV. Much like the graphics you see on air everyday. The reporter was never seen in the studio.

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