Yes, we all need one more catastrophic way for the world to end, don't we?Intelligence ≈ aggression ? Assuming it is.
I think the scarey part of that is an assumption of SETI assuming intellligent life is benevolent, as well as NASA putting that plaque putting our location on Voyager.
If we contact other lifeforms and they are benevolent, we are good, if not we are goners. Given the risk and potentials, seems like its best not to try to contact ET.
http://news.discovery.com/space/do-aliens-exist-will-they-kill-us.html
I for one live my life, come what may.