Questions are mounting about how anyone could not only storm the White House through an unlocked front door, but also make it all the way into the East Room. Secret Service Director Julia Pierson testified on Capitol Hill today and acknowledged that the "security plan was not properly executed" when an intruder jumped the White House fence. Pamela Brown takes a closer look the grilling by congressional lawmakers.
Do Secret Service agents have any more power to use lethal force than the average American police officer? Randi Kaye reports on Secret Service protocols.
Anderson Cooper goes beyond the headlines to tell stories from many points of view, so you can make up your own mind about the news. Tune in weeknights at 8 and 10 ET on CNN.
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