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NEED TO KNOW | Crisis mappers: Mobile technology helps disaster victims worldwide | PBS

http://www.pbs.org/wnet/need-to-know/security/video-crisis-mappers-mobile-technology-helps-disaster-victims-worldwide/9325/ A breakthrough technology that uses cell phones to aid people in disasters is now being used to help victims of the tornadoes in the Midwest, the earthquake in Japan and the unrest in the Middle East. Need to Know airs Fridays on PBS. Watch full-length episodes of Need to Know at http://video.pbs.org/program/1458405365/
Length: 09:59

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