Iteresting point about the above article. It makes clear that an 'honest discussion' can't be held if people aren't willing to listen, and to view opposing viewpoints. Kind of like how downrating comments that don't support your own beliefs and opinions takes away from the discussion and removes challenges to 'political correctness' and group-think. America is where anyone can be heard and anyone can believe what they want, and have protected, free association with those of like mind. The difference is when it becomes violent, which is were that protection stops. For those that try to stifle opposition to your own 'perfect and righteous' viewpoint, I sincerely hope you will never be without a thousand gadflies picking apart your Ivory Tower.