AT&T; and Union Resume Talks

WASHINGTON — With the aid of federal mediators, negotiators for American Telephone & Telegraph Corp. and its largest employee union resumed bargaining today aimed at ending a three-day strike against the telecommunications giant.

Morton Bahr, president of the Communications Workers of America, said the objective is to reach a settlement “well before the end of the week.” The union’s 155,000 member employees of AT&T; struck the company at midnight Saturday after the two sides failed to reach agreement on a new three-year labor contract.