We should never forget that - from a drastic point of view - each time we drive a car we create enough kniectic energy to kill ourselves.
Once you do not watch out or misjudge a situation there is a good chance of getting seriously hurt.
In this case it was no accident, but it clearly shows that we are not aware of what power we steer through our streets each day.
We use it, but we can't really control it.
OMG, this reminds me of atomic energy... 