NBC debunks Dobbs' and Limbaugh's birther "conspiracy theories" Video ››› July 22, 2009 8:28 PM EDT ››› MEDIA MATTERS STAFF ? From the July 22 broadcast of NBC's Nightly News with Brian Williams: Loading the player reg... Short Link copy link Posted In Government, The Presidency & White House Network/Outlet NBC Person Rush Limbaugh, Brian Williams, Lou Dobbs Show/Publication NBC Nightly News We've changed our commenting system to Disqus. Instructions for signing up and claiming your comment history are located here. Updated rules for commenting are here. View the discussion thread.