Las Vegas twosome Penn and Teller are known as much for their sleight of hand as their public education efforts, and a recent video—with possibly objectionable language for some—shows they have no patience for the anti-vaccination crowd.

Before mentally slotting the pair in the “left” category, know that they have also taken on recycling (language alert applies here, too) in a way that may distress the green-is-good contingent.

The anti-anti vaccination video comes soon after talk show host/former game show host Jenny McCarthy tried to distance herself from the anti-vaccination movement, although she does not believe in vaccinations.

An uptick among non-vaccinating parents has been linked to recent outbreaks of measles as well whooping cough. A 1998 paper by Andrew Wakefield which claimed to link vaccines to autism has been a spark for the no-vaccine movement. He has since been declared an “elaborate fraud” by BMJ which laid out an investigation that exposed data manipulation.

Philadelphia pediatrician David Offit told Time in 2011 that Wakefield’s research was “That paper [that] killed children.”