What technological advance has caused more harm than good?

[Mike]

Originally Posted by whakojacko

i somewhat agree. However, nuclear weapons have also added stability to the world because large-scale nations are less willing to fight knowing that it might end up with the whole world in ashes. You could really argue either way.

That's true, and it was even more so true before this new era of terrorism. But now, nuclear is becoming so (relatively) common that all it takes is one terrorist group to get one missile and the whole world is in ashes.