China's newest diplomats have been unveiled to the US public. Three-year-old giant pandas Bao Li and Qing Bao have made their debut at the Smithsonian national zoo in the US capital. It’s part of a longstanding conservation partnership between the usually competitive superpowers.

Washington and much of the country have been fixated on two newcomers to Washington, D.C., that have stolen attention but have no connection to politics. NBC News' Tom Costello reports on the official public debut of the new pandas at the Smithsonian National Zoo.