In this sneak peek at Meredith Vieira's exclusive "Rock Center" interview, a former White House intern describes her steamy affair with President John F. Kennedy. "Rock Center" airs this Wednesday. (TODAY)
Chelsea Clinton is teaming up with "Rock Center with Brian Williams" and "NBC Nightly News" as a Special Correspondent. Clinton's role with the shows and the network will be to highlight stories within the "Making a Difference" franchise.
Rachel Maddow tours the construction at the World Trade Center site and the progress being made on the One World Trade Center tower with Lynda Tollner, Program Director of One World Trade Center. (msnbc.com)