Should we be careful with the opinions we express or not?

Today I was sitting at a cafe doing a few of my readings for classes next week when one of my friends joined me. Somehow we ended up talking about Bill Maher’s Documentary/Movie, Religulous (http://www.youtube.com/watch?v=-Gxc0XEoQpQ). Which to be honest I enjoyed a lot and saw it somewhat as an attempt to criticize Religion in general … More Should we be careful with the opinions we express or not?