>> just break it down. >> it's going to take decades if you go to destruction. >> the assessment and securing. how long do you think that would take? >> depends on how many people you have and how you craft the security nut. what you've got to do when you secure thesis provide 24/7 security. now, are you going to depend on the syrians to do that? i rather think not. but on the other hand, inspectors are awful people for securing sitting around 24/7. >> i'm sorry, david. i didn't mean to interrupt you. david we've got to take a break. i appreciate you being on again. it's always fascinating to hear from one with so much experience on the ground. coming up next, the backdrop to so much of this conversation today, the tragic events of 12 years ago. we'll be right back. [ male announcer ] what's important to you?