Social Media McDonald’s customers take to Twitter to ask #WheresTheCheese? The chain issued an apology after consumers slammed it for a mozzarella stick snafu. Managers of competing brands used social media to seize on the fast-food flub. By Clare LaneFeb. 1, 2016 SHARE To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.