I agree, and would also like to point out that these are not mutually exclusive. Lasers can help detect pedestrians that run in front of cars, while intercar co

I agree, and would also like to point out that these are not mutually exclusive. Lasers can help detect pedestrians that run in front of cars, while intercar communication can send information about cars "intentions" and additionally could send warnings back to other cars about obstacles they may not be able to detect for a ways out.