If you lived in a big city in the 90s, you're probably one of the unlucky people who was kept up at night on a regular basis by errant car alarms. But today, those in that same big city hear alarms far less often than you did. So where did car alarms go? How have they evolved, and did we ever need them to begin with?
Subscribe to Cheddar on YouTube: http://chdr.tv/subscribe
