Or at least stop spending so much money on it?
Part 2 of the surprisingly upbeat state of the world: Long-term statistics show war is on the wane.
Harvard psychologist Steven Pinker argues that, as a society, we are on a "retreat from violence."
In life, Osama bin Laden made a huge impact on the US, all in the name of preventing another 9/11. If he and Al Qaeda fueled antagonism between the US and the Muslim world, they also pushed America toward a better understanding of the Middle East.
Obama delivers his Afghanistan war speech Tuesday. The danger for the president is that next fall, disillusioned voters on the left sit out the midterm elections, when the Democrats are already expected to lose seats in Congress.