Regarding the editorial "Bush's 'Quota' Politics," June 3: Whatever one may think about the current civil rights bill, the issue of quotas is real, and cannot be dismissed as a "political sideshow." The bill obviously creates powerful incentives for business to adopt hiring quotas.The Supreme Court's Griggs decision of 1971, which this bill seeks to restore, led to the widespread use of quotas by businesses and municipal governments. There were numerous court challenges to such systems, which the courts upheld until 1989 when the Supreme Court realized that Griggs conflicted with the Civil Rights Act of 1964. Restoring the Griggs standard would clearly cause a return to the use of quotas. Mark Wylie, Los Angeles Letters are welcome. Only a selection can be published, subject to condensation, and none acknowledged. Please address them to "Readers Write," One Norway St., Boston, MA 02115.