President Biden and the first lady visited all three 9/11 memorial sites on Saturday to honor those who died in the terrorist attacks 20 years ago. Hours after the day’s somber ceremonies, the Justice Department released never-before-seen information related to the Sept. 11 investigation. NBC News’ Monica Alba reports from the White House for Sunday TODAY. » Subscribe to TODAY: http://on.today.com/SubscribeToTODAY » Watch the latest from TODAY: http://bit.ly/LatestTODAY About: TODAY brings you the latest headlines and expert tips on money, health and parenting. We wake up every morning to give you and your family all you need to start your day. If it matters to you, it matters to us. We are in the people business. Subscribe to our channel for exclusive TODAY archival footage & our original web series. Connect with TODAY Online! Visit TODAY's Website: http://on.today.com/ReadTODAY Find TODAY on Facebook: http://on.today.com/LikeTODAY Follow TODAY on Twitter: http://on.today.com/FollowTODAY Follow TODAY on Instagram: http://on.today.com/InstaTODAY