Democatic Congress flexes its oversight muscles
Democrats have been in charge of Congress for less than three months, and already they have pressed the president on the war in Iraq, the conditions at Walter Reed and most recently the firing of eight federal prosecutors. How will the divided federal government affect the last two years of Bush's presidency?11:06 a.m.Steven Smith: Director of the Weidenbaum Center on the Economy, Government and Public Policy at Washington University in St. Louis.
Black holes, killer asteroids and why Pluto wasn't a planet
Astrophysicist Neil deGrasse Tyson started the movement to strip Pluto of its planetary status. Now he's out with a new book, "Death By Black Hole and other Cosmic Quandaries." Tyson spoke in February at the Commonwealth Club of California.12:06 p.m.