no idea how that is supposed to work properly and safely but thank god there is someone who can robert fowler is here the co-founder and c.e.o. of enron it's a swedish company that developed this truck so how does this work without the driver is likely a combination of different techniques this is cell phone technology and remote so we're actually using different later systems and to actually create a system second actually replaced the truck driver right and what happens when the technology fails we have a combination of cell driving so when the self-rising can solve the problems it's the aftermath will get removed and connects to the remote so we actually get the driver in and reap the benefits of sense trying to acknowledge and well as human decision making so there's a human fallback option that someone from headquarters can steer this ok so when do we see this on the road how long will it take to get this on the road really very doing testings right now and first installation of customer insist you mean do it during q free this year so this year this truck or the some of these trucks wil

fowler are here to debate. let's go to chief white house correspondent john roberts. >> let's keep you up-to-date on what the president is up to. i'll put the pictures up on the screen. he touched down in west palm beach, florida, just a short time ago, air force touching down after a blinding thunderstorm there. here comes the president out no now, he'll spend the weekend at mar-a-lago, then he'll head back to washington, d.c. we are learning some preliminary details of the president's physical that was conducted to this afternoon, according to dr. ronnie jackson who was the white house physician who examined him, his physical exam at walter reed national medical center went exceptionally well, he is in excellent health. i look forward to debriefing some of the details on tuesday. if we will get a good idea of how he's feeling. now to the other big story, we can go back to those pictures in west palm beach, i guess you can call it the s storm, it remains to be seen whether his comments are going to affect negotiations over deferred action for childhood arrivals program which will begin in earnest next week. the presi