Sociologist Jill Quadagno talks about the political, economic and historical reasons behind America's lack of a national health insurance program.

Mohamed Yahya, a refugee from the Darfur region of Sudan, spoke about his experiences and his work to speak out against the genocide in that country

Fourth and final lecture in a series by sociologist Rodney Stark, on Why Religions Succeed or Fail.

Sociologist and Pulitzer Prize-nominated author Rodney Stark, who debunks the notion that Christianity has held back scientific progress in his new book, delivered the second in a series of four lectures about why religions succeed or fail.  Part 2 of a series on Why Religions Succeed or Fail.

Sociologist Rodney Stark says an economic model is the best way to understand the rise and fall of religions.  Part 1 of a series on Why Religions Succeed or Fail.