CNN's Erin Burnett interviewed Secretary of Homeland Security Janet Napolitano on Tuesday about the effectiveness of the TSA.

"If someone is willing to kill themselves, they're going to find a way to do it, right? There's no way you can become fool-proof," Burnett asked, referring to attempted suicide bombings. "Look, this is the Department of Homeland Security, not the department of guarantees. There are no guarantees here."

Watch via CNN: