War On Terror: Mexico may think its differences with the U.S. and status as a nonaligned country somehow shield it from the global war on terror.... Nearly 11,000 people were evacuated Thursday from Torre Mayor, Mexico City's tallest, ritziest tower, after a terrorist called in a car bomb. The device, which Mexican investigators called "artesanal," was easily dismantled. But the unprecedented evacuation echoed the disruptions Manhattan has seen as an al-Qaida target since 1993. An obscure group called EPR claimed credit the next day, but it doesn't seem to be linked with global terrorist networks.There's reason to worry, however, that...