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Revco D.S. Inc., the second-largest U.S. drugstore chain, is in talks to be acquired by CVS Corp., which ranks fifth, the companies said. The companies did not elaborate on any potential deal. . . . New York filed suit against the nation’s tobacco giants, becoming the 20th state to try to recover money spent for health care from the industry. . . . Smith Corona Corp.’s Chapter 11 reorganization plan was confirmed by a U.S. Bankruptcy Court judge. . . . Prudential Securities Inc. paid two customers $272,828 for failing to properly supervise a broker who traded options without their authorization and misrepresented the value of the assets between 1987 and 1990. The Michigan-based broker had been fired before the losses were discovered. . . . Tower Automotive Inc. said it agreed to acquire A.O. Smith Corp.’s Automotive Products Co. unit for $625 million in cash. . . . Hasbro Inc. unit Playskool said it plans to introduce a line of toys that inhibits growth of germs and bacteria, using Microban Products Co.’s colorless and odorless antibacterial protection.