Brown says LTE gives the cars the ability to do fast license plate checks and feed video to dispatchers.

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He built a Sonic Pavilion in Brazil that records the sound of plate tectonics one year, and then created a video and performance piece on a barge in Greece the next.

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Officers believe forensic analysis of the video images may reveal part or all of the vehicle's number plate.

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The video is blurry, the van is only seen for a few seconds, and neither a driver nor license plate can be seen.

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