(CBS News) BELGRADE, Mont. -- Republican Sen. Conrad Burns, whose recent comments have stirred controversy, says the United States is up against a faceless enemy of terrorists who "drive taxi cabs in the daytime and kill at night." During a fundraiser Wednesday with first lady Laura Bush, the three-term Montana senator talked about terrorism, tax cuts and the money he has brought to his state. Burns is one of the more vulnerable Senate incumbents, facing a tough challenge from Democrat Jon Tester. He has drawn criticism in recent weeks for calling his house painter a "nice little Guatemalan man" during...