and finally, not -- last but not least, definitely, stephen hadley, principal at wright hadley gates emanuel. together, steve and charlene co-chaired a task force john and i led a couple of years ago on global infrastructure and designing a u.s. global infrastructure strategy and we're just delighted to have them back with us to talk about that and sort of where we are today. so, i think with that, we're going to do sort of tag team q&a now. down the line as it were. i'm going to start with brendan, actually. brendan, you are everywhere in the world. your company. so i'm sort of interested in particular on linking the domestic and international story. we're a think tank focused internationally but the domestic infrastructure story is important in and of itself. the question is how does it link in your mind to the international story? why is it important and how do you think about it in the global context? brendan: yeah, thanks, matt. first, let's remind ourselves why it matters if u.s. companies are competitive in this arena. it really comes back to u.s. leadership. so billions of pe