PHOTOS: Letterman interviews Oprah at Ball State

<div class="meta image-caption"><div class="origin-logo origin-image "><span></span></div><span class="caption-text">Oprah Winfrey reacts to a question from Ball State University alumnus David Letterman, right, host of CBS&#39;s &#34;Late Show,&#34; during an interview at Ball State University in Muncie, Ind., Monday, Nov. 26, 2012. The conversation is part of the David Letterman Distinguished Professional Lecture and Workshop Series. &#40;AP Photo&#47;Michael Conroy&#41; (AP Photo&#47; Michael Conroy)</span></div>
November 26, 2012 4:58:06 PM PST