Tools are improving all the time, but are humans?
Out of anger against others, they can use their minds to inflict more and more damage. So, perhaps the thing to do is to understand why they're angered and take measures to lessen the anger.
Tools (used by humans) can also fail because of human error, like the Egyptian charter plane that went down this morning.
That's perhaps why we trust more and more our fate to machines.
Machines have extended our limbs, are now more and more replacing humans.
Humans will have the last word, will keep the creative mind, but machines will keep replacing us , to what point?
We won't know the end.

Raoul