I see a lot of negative comments about the gun episode. Again, Adam is using facts presented by other people and presenting them in a compelling narrative that makes it enjoyable. It's not him presenting his opinion as facts, and you can see and read all of his sources.
I enjoy the show a lot and I find it educating and funny. I recommend watching it and if you find information during the show you disagree with, go see the source and try to see if the context helps you. If you still disagree, well that's your choice.