As much as I love watching Penn and Teller I wouldn't take their opinion, as presented on TV, seriously on anything. They have no interest in objectivity or to seek out valid counter arguments. Their attempts to make it look like both sides get an equal chance to present their ideas are pathetic. They care nothing about educating their viewers on the nuances of what are often complex issues. All they want is to present entertaining polemics and scathing diatribes (and maybe some nudity), objectivity and consequences be damned.

And I'm saying this as someone who is not only a great fan of Penn and Teller, but also someone who almost always finds myself on their side in the arguments they present.