ragnunathan rajkumar and this is car commuting -- communicating with anybody anybody but self? >> guest: is capable of actually communicating with a properly equipped traffic light, traffic sign and other objects with similar ready or was -- radios. >> host: i also see some cameras inside the car right appeared. what are these? >> guest: in addition to the six lasers sensors we talked about there are three cameras in six radars as well so they are two cameras one on either side of the rear view mirror. one is pointed downward looking for land markers on the roads and other cameras are pointed upwards looking at traffic lights. the third camera on the back is tracking focusing see kinsey was going on. there are six radars. there is one behind this cadillac emblem. this is a medical local with a plastic logo so you can see through plastic but it turns out the radar behind this bumper as well on top of the lidar behind the bumper, the bumper is made of plastic so the radar can see through the plastic as well. there is radar on the other side of the bumper and to on this side right