BROADCASTS.com

First, we revisit a classic debate: nature vs. nurture. One way to settle it? Through the lens of twin studies, which have opened up some curious revelations about how our genes affect us.

Next, we turn to the 19th-century Midwest, and look at how Laura Ingalls Wilder reframed American history in the \u2018Little House\u2019 house series.

Then, you sent us a whole lot of feedback about a recent segment on whether we spend too much money on education in the U.S. - and whether college educations are overvalued. Here\u2019s some of it.