More doubts expressed over the death penalty, as a milestone is marked.
QUICK FRIDAY NEWS:
* Answering viewers' questions on White House woes.
* Death tolls make for an awkward measurement of the Iraqi war.
* Arguing over immigration reform.
* University of Kansas cancels 'intelligent design' mythology class.
* Understanding hypercompetitive people.
* What, no advanced screenings for Aeon Flux?
Building the better wine bottle.
Post-Serenity interview with Joss Whedon.