You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract Taco Bell Announces Next Dorito Locos Taco, but Mum on Flavor Seeks to Build Excitement by Sparking Speculation By Maureen Morrison, Published on August 01, 2013 0 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.