The scenario is all too familiar: A corporation or government agency, having knuckled under to a group of "civil rights" activists and their lawyers, renders itself an easy target for successful copycat shakedowns. The U.S. Department of Agriculture (USDA) for over a decade has epitomized such capitulation. And once again it has come through. On October 19 the department announced the settlement of a longstanding lawsuit in which thousands of American Indian farmers and ranchers had claimed discrimination by USDA credit program administrators. The $760 million agreement, which gained preliminary court approval yesterday, follows the agency's capitulation earlier this year in separate lawsuits filed by black and Hispanic farmers. Taxpayers will be stuck with the bill.