I feel the punishments they dole out in US are often overblown, but on the other hand it's far too lenient here in Finland. Incarceration ought to be balanced, so that it would earnestly attempt to rehabilitate criminals, but also act as a deterrent against crime (and cater to peoples' yearning for justice). Life sentence doesn't really serve that purpose, but there is a fourth need in incarceration: Keeping the bad material away from preying on innocents. Some people are just monsters. If they do a bad enough crime and show no remorse nor discernible possibility for rehabilitation, they are best kept away from society.