US President Barack Obama (L) listens to the Republican Presidential candidate Mitt Romney during the second presidential debate, the only held in a townhall format, at the David Mack Center at Hofstra University in Hempstead, New York, October 16, 2012, moderated by CNN's Candy Crowley. AFP PHOTO / TIMOTHY A. CLARYTIMOTHY A. CLARY/AFP/Getty Images
CNN / AP
This image from security video made available by CNN shows a man believed to be Najibullah Zazi shopping at Beauty Supply Warehouse in suburban Denver. Court papers say that during the summer, Zazi and three unidentified associates bought "unusually large quantities" of hydrogen peroxide and acetone, a flammable solvent found in nail-polish remover, from beauty-supply stores in the Denver area
BRIAN BLANCO / EPA
Republican presidential candidates (L-R) Jon Huntsman, Herman Cain, Rep. Michele Bachmann, Mitt Romney, Gov. Rick Perry, Rep. Ron Paul, Newt Gingrich and Rick Santorum as they prepare to debate during the event sponsored by CNN and The Tea Party Express at the Florida State fairgrounds on September 12, 2011 in Tampa, Florida. The debate featured the eight candidates ten days before the Florida straw poll.
Jim Bourg / Reuters
CNN anchorman Wolf Blitzer moderates the during the CNN GOP National Security debate in Washington, November 22, 2011.
CNN / Reuters
CNN anchor Wolf Blitzer is in New York talking to CNN reporter Jessica Yellin in Chicago, who is projected as a three-dimensional hologram, during election night coverage November 4, 2008, making it appear as if she is in the Manhattan studio with Blitzer.
Christopher Morris / VII for TIME
Massachusetts Gov. Mitt Romney and President Barack Obama during their first debate at the University of Denver on Wednesday, Oct. 3, 2012. Taken from live CNN
Andrew Eccles / CNN
Soledad O'Brien, CNN host and author of The Next Big Story
Mark Hill / CNN / AP
Lou Dobbs on the set of his CNN show, "Lou Dobbs Tonight", in New York City
This framegrab from video, provided by CNN, shows a graphic indicating the large number of commercial flights affected by a communication failure at a Georgia facility that processes flight plans for the eastern half of the United States
Madonna addresses the audience at the 24th Annual GLAAD Media Awards at the Marriott Marquis on Saturday March 16, 2013 in New York. Madonna presented CNN news anchor Anderson Cooper with the Vito Russo Award. (Photo by Evan Agostini/Invision/AP)
Jim Bourg / Reuters
Republican presidential candidates wave after their introductions during the CNN GOP National Security debate in Washington, November 22, 2011
Scott Audette / Reuters
Republican presidential candidates Newt Gingrich and former Mitt Romney spar during a debate sponsored by CNN, the Republican Party of Florida and the Hispanic Leadership Network Jan. 26, 2012 in Jacksonville, Florida.
AP / Jim Cole
Rep. Michele Bachmann answers a question as former Pennsylvania Sen. Rick Santorum, center, applauds while CNN's John King, left looks on during the first New Hampshire Republican presidential debate at St. Anselm College in Manchester, N.H., Monday, June 13, 2011
Michelly Rall / Getty Images for TIME/Fortune/CNN
Businessman and philanthropist Mo Ibrahim with TIME Managing Editor Rick Stengel at the Fortune/TIME/CNN Global Forum in Cape Town, South Africa
Frank Franklin II / AP
Henry Louis Gates Jr. looks on before a panel discussion on CNN's "Moment of Truth: Countdown to Black in America 2" in New York City
Michelly Rall/Getty Images
Former President Bill Clinton, Founder of the William J Clinton Foundation attends the TIME/FORTUNE/CNN Global Forum at the Cape Town International Convention Centre on June 27, 2010 in Cape Town, South Africa.
Steve Marcus / Reuters
Democratic presidential candidates pose for a photo opportunity at the CNN/Nevada Democratic Party debate at the University of Nevada, Las Vegas, Nov. 15, 2007
Ethan Miller / Getty Images
Former Massachusetts Gov. Mitt Romney (L) and Texas Gov. Rick Perry participate in the Republican presidential debate airing on CNN, October 18, 2011 in Las Vegas, Nevada