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Doritos tacos put sizzle in Taco Bell's US sales
Taco Bell has put the sizzle back in its U.S. sales after a nearly yearlong slump stemming from a short-lived lawsuit that created a stir. The Mexican-style chain saw its revenue at U.S. restaurants open at least a year rise 6 percent in the first quarter. And its parent company, Yum Brands Inc., is predicting …