the border anything sub stang to improve the crossings, so the cues are getting longer, wait times are getting longer and these are the kind of things we should be focusing on much how can we be sure something that is produced in within mexico, then goes to a factory in north carolina, and that it would be exported to europe. how can we stream line that process to make it more productive, more competitive for both countries? that means unsfra structure. that means logistics, that s where the factors of mexican relationships should be on. we should been paulaing for the opportunities, not the problems. i perceive the u.s. government is focusing strongly on that, as well as we. pleasure to have you on. thank you, such an honor. up next, if watching the world cup you see pictures of the slums of rio and wince, my next guest will give us the case for slums and he s a harvard