National Public Radio: Presidential campaigns come and go, but John McCain’s camp has proliferated a slogan that could live on well past the election: “Drill, baby, drill,” the battle cry for those who believe the U.S. should be drilling for more of its oil offshore. Since 1969, when a devastating oil spill occurred off the coast of Santa Barbara, Calif., there has been a federal ban on new offshore rigs in American waters. But now that the ban has been lifted, some attitudes are changing, even near the …