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Charles Murray talks about his book, "Coming Apart: The State of White America, 1960 to 2010," and suggests a way to address the growing division between the classes.
Dr. David Page, director of the Whitehead Institute for Biomedical Research, defends the Y chromosome in the face of enumerable challenges and insults to its character.
Actor Mark Ruffalo became an anti-fracking, clean water activist after seeing the technologies' detrimental impact on communities in Pennsylvania.