Congress wants to fence off the Mexican border by the end of this year. So, the Bush Administration has waived the Clean Air and Endangered Species Acts along with some 30 other environmental laws. Will completing the fence mean better border enforcement? Will it be worth the environmental costs? Also, Muqtada al-Sadr offers to disband his Madhi Army, and the Olympic Torch—extinguished in Paris. What's expected in San Francisco?