 AT Smith, thank you. I also want to bring in CBS News National Security Contributor Samantha Vinograd. And Samantha, I know you have worked with the Department of Homeland Security. You're familiar with a number of these issues. What stands out to you now that we are learning some new details today from the FBI? Well, what stands out to me is that this threat of a lone actor, a single individual engaging in mass casualty and high-profile violence is what we lived...