secure it at some point. that's going to take an awful lot of apparatus and clearly they want to make sure there's no debris that's sitting out on the runway. they want to clear any pieces of wreckage, if anything fell off the plane, from a nut, bolt to something considerably bigger than that. they need to get all of that picked up so another aircraft doesn't -- its engines don't ingest that material and cause a significant engine damage. so after any incident like this there is a very long list of issues and protocols they need to work through, the priority is making sure everybody safe is taken care of and securing the scene and ensuring that they've got everything picked up and out of the way. >> with us now is tom bund a retired airline captain and aviation expert joining us by