[mzw_mzw]

Perhaps they could also call for the manufacturers to "develop technology" to give every driver a pony, while they're at it. It's kind of infuriating to hear from someone who thinks you can just say "develop technology" and then anything will happen.

[tzs]

You seem to be assuming that the NHTSA has no idea how feasible such technology is, and so may be asking for something that is very hard or even impossible.

That's a quite questionable assumption. They almost certainly talked to automobile and smartphone industry experts while developing these guidelines, and know that there are several fairly easy ways to do what they are asking for.