Future Tense: What's really at the heart of Farmville's popularity?

A story on Future Tense, an American Public Media radio show that reports on how technology is reshaping the world, looks at the Facebook game Farmville and interviews A.J. Patrick Liskiewicz, who is completing an MFA in media study at UB. What's really at the heart of Farmville's popularity is a compulsion toward politeness, he says.