Japan Strains to Thwart Nuclear Meltdown at Three Reactors
Clip: 03/14/2011 | 9m 28s
Authorities worked to bring three nuclear reactors under control after cooling systems were knocked out when a massive earthquake struck Japan. Gwen Ifill talks to NewsHour correspondent Miles O'Brien and David Brenner of Columbia University's Center for Radiological Research about the science behind Japan's nuclear power.
Aired: 03/14/11
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