Rush to the bottom: Limbaugh appeals to idiocy, calling for riots at the DNC.
Slick spot: Ritter works toward a promise for higher-ed funding.
Culture vultures: Cricket cheerleaders spark a national discussion in India.
On the bus: Texas authorities separate mothers and children while they investigate charges against Warren Jeffs' polygamous cult.
Training wheels: A new study argues against abstract correlations in math education.