There've been technologically-altered helmets before, like the heat-sensing helmet, and, in fact, impact-sensing helmets have been proposed before--but these are the first to actually get a preliminary go-ahead from the NFL. The helmets seem like they'd be an easy fix--after all, there's already a built-in headset in many modern helmets--so we're hopeful that the tech is implemented and turns out to provide some useful data. Football will never be completely safe, but we can certainly make the protection more effective.