Nitrogen hypoxia is the gaseous canister version of a knee on the neck. US states that plan to use it must be stopped.
![A fence stands at Elmore Correctional Facility in Elmore, Alabama, June 18, 2015. The state plans to start using nitrogen hypoxia for executions [Brynn Anderson/AP Photo/File]](https://www.aljazeera.com/wp-content/uploads/2023/09/AP23046847515567-1695355092.jpg?resize=770%2C513&quality=80)
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An apparently botched execution in Alabama raises questions about the use of medicine as an arm of state power.
