Here's yet another example of how EDCing a flashlight could save lives. According to this article, teenage girls that were trapped in a car after a crash were able to signal for help using flashing LED souvenir bracelets from the Taylor Swift concert they had just been to.
http://www.people.com/article/taylor-swift-concert-bracelet-car-crash
http://www.people.com/article/taylor-swift-concert-bracelet-car-crash
