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What do you suggest in regards for money being spent on containing people who have zero chance on rehabilitation? Sweden can't afford cancer medication for certain people, but has no issues containing violent sadists. http://www.svd.se/effektiv-cancermedicin-anvands-inte http://www.sydsvenskan.se/skane/hon-fick-ny-cancermedicin-ut... Some people in the middle east tortured children, women and committed other atrociti…
The death penalty is more expensive than life in prison. If the US didn't imprison so many people they'd easily be able to afford to house the actually violent criminals.
For the record, I'm very happy that people on death row get so many appeals. I'm very happy that some of those appeals are automatic (all states I'm familiar with automatically appeal any death penalty sentence to the state supreme court).
But given that the average death row inmate lives 20 years or so in custody, and that the average life sentence prisoner lives two or three times that long, and assuming that the people on death row don't get incredibly expensive food, it seems that the only reasons for a difference would be increased security costs (are life sentence inmates less likely to try to break out?) or costs not directly related to jail, such as legal appeals.
We could save a lot of money by simply denying appeals to inmates on death row, but I don't think that would be an improvement. If anything, the difference in cost between death row and life imprisonment suggests that life sentences aren't getting the same scrutiny that death sentences get, and we probably have more innocent people serving life sentences than awaiting execution.