This is a good thing. Reduces costs down to a midnight tank delivery from a welding supply warehouse.
This is a good option for those not wanting to spend too much on training executioners.
I'm personally fond of the gallows, complete with hymn singing just to p*$$ off the ACLU. The sudden drop, jerk and twisting in the wind afterward provides the dramatic effect of a powerful deterrent without the blood, which nitrogen asphyxiation will not.
But it does kick people off the planet effectively who seriously need killing.
You cannot use nitrogen from a welding supply house. That nitrogen is not approved for medical uses. In order to protect the health of the condemned, medical nitrogen would have to be used.
Yes, I’m being sarcastic