title: "Hide" the Tab Bar When Pushing a View
body: <p>The New York Times iPhone application has a Tab Bar with five tab bar items.  When you select the Latest tab, the app shows the title and abstract/summary in a UITableView.  When you select an individual story to read, the Tab Bar disappears and is replaced with a header and footer that appears/disappears depending on the state of the app.  How does the app "hide" the tab bar?</p>
  
  <p>Thanks!</p>