The most powerful weapon isn't in a missile silo: it's in your head. Leonard Pace explains why we should be far more terrified of our brain guns than any manmade weapon. Subscribe to The Onion on YouTube: http://bit.ly/xzrBUA Like The Onion on Facebook: http://www.fb.com/theonion Follow The Onion on Twitter: http://www.twitter.com/theonion