Backup cameras cover a blind spot behind the car that’s large enough for a child to not be seen if you’re craning your neck the old-fashioned way. Obviously the

Backup cameras cover a blind spot behind the car that’s large enough for a child to not be seen if you’re craning your neck the old-fashioned way. Obviously they aren’t as important as seatbelts, but the biggest improvements to a new invention tend to be the ones invented earlier anyway.