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FORA.tv Science Season: 1 Episode: 37 Viruses make up "about 8 or 9 percent" of our genome, notes science journalist Carl Zimmer. Zimmer explains how viruses throughout history have affected human evolution -- and, in fact, continue to affect us every day.
Cable Highlights The MHP panel talks about the issues facing our water infrastructure, from water pollution to water droughts and shortages.
Cable Highlights Alex Witt talks to NBC News Olympic Security Analyst Andrew Weiss about the current state of affairs at the Sochi Olympics and Russia.