Verifiers Try New Tactics To Counter Check Decline.

Discusses how companies that verify point-of-sale checks for merchants are finding ways to reduce revenue loss from the decline in check use. Views of Cindy Knowles, vice president of marketing at Certegy Inc., and Rick Swagler, spokesman for AmSouth Bancorp; The concerns of Washington Mutual Inc. when it stopped verification services in 2002; The service that TeleCheck International Inc. of Houston provides; Comment of analyst Ariana-Michele Moore.