Need to Know

Season 2011 Episode 02.17.11

Fri., Feb. 18, 2011

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Aired Friday 8:30 PM Feb 17, 2011 on PBS
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Episode Summary

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Fri., Feb. 18, 2011
AIRED:
Physicist Brian Greene explains the science behind the theory of multiple universes. We provide an update to our previous reports on fracking. Alison Stewart speaks with Michael Wahid Hanna to discuss what may come of Egypt's new political structure. Producer Mona Iskander provides a personal essay on her experience watching the Egypt protests unfold.moreless
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