New video of Correspondents' Dinner shooting raises questions about presidential security

The Justice Department has released video showing the moment an armed man stormed past security at the White House Correspondents’ Dinner. The incident is raising serious questions about security surrounding the president at high-profile public events. Geoff Bennett speaks with Juliette Kayyem of the Homeland Security Project at the Harvard Kennedy School to learn more.Notice: Transcripts are machine and human generated and lightly edited for accuracy. They may contain errors. Geoff Bennett: The Justice Department released high resolution video showing the moment an armed man stormed past security at the White House Correspondents' Dinner.The incident is raising serious questions about the security posture surrounding the president at high-profile public events.We're joined now by Juliette Kayyem of the Homeland Security Project at Harvard's Kennedy School. She previously served as assistant DHS secretary in the Obama administration.Juliette, it's great to see you.So, look, there are lots of questions, as you know, about the shot that struck the U.S. Secret Service agent. The U.S. attorney for the District of Columbia, Jeanine Pirro, says there's no evidence of friendly fire.But the video, this single video, is not definitive. What does this footage show us and what does it not show us? Juliette Kayyem, Former