It's being discussed. Oklahoma has legalized it as an alternate execution technique, and is reportedly considering using it if they can't acquire the necessary

It's being discussed. Oklahoma has legalized it as an alternate execution technique, and is reportedly considering using it if they can't acquire the necessary drugs for lethal injection (earlier this month, the execution of Richard Glossip was called off at the eleventh hour because of a drug screw-up). I'm not actually sure that you would thrash around at all, since there's no suffocation reflex -- according to Wikipedia, you pretty much just lose consciousness and that's that. (https://en.wikipedia.org/wiki/Inert_gas_asphyxiation https://en.wikipedia.org/wiki/Inert_gas_asphyxiation) For the record, I think we should abolish the death penalty, so I'm not supporting this option, just sharing the data.