I'm frustrated and embarrassed by the existence of wars in the world. It's stupid that humans of today can't stop their animal impulses and unload them by causing wars. Humans invent more and more perfect deadly weapons. Luckily, as the weapons develop, people are becoming more aware of the danger that they are bringing to themselves. We are a very rare phenomenon in the Universe and it would be really dumb of us to lead ourselves to self-destruction.