[msrenee]

Hopefully you mean tell the pilots to abort and not start the process itself. What if there's something on the runway or the runway is too short or slick for the plane to decelerate? There's differences between conditions and runways that would have to be accounted for and then you'd have to add a lot more capabilities to the plane's sensors for every other possible issue.

It's often a judgement call when things don't happen quite right and I don't think our technology is anywhere near ready to hand the abort process over to the plane's programming.