title: How to prevent following view controller inheriting navigation view controller bar?
body: <p>My app starts off with a navigation controller then, using segues, continues onto two view controllers followed by a tab bar controller. </p>
  
  <p>The problem is that the tab bar controller still inherits the navigation bar at the top, and displays the back button. I don't want the user to be able to click the back button, but rather use a click a separate log-out button to return to the beginning. </p>
  
  <p>Essentially, how can the views following the tab bar controller un-inherit the navigation bar?</p>