Well, America is rapidly catching up to China as far as prison farms and factories, although ours are "privatized" so as to add a layer of insulation from elected (and de-electable) politicians. I suppose if you're packing time for a third DUI or domestic violence, building guitars would while away the days.... Not too long ago a couple of judges got caught selling 10-year-old kids to prisons for $50,000 apiece. Stupid judges! I'm sure the smart ones* fare better than these clowns:
http://www.infiniteunknown.net/2013/05/27/pennsylvania-judge-sentenced-for-28-years-for-selling-kids-to-the-private-prison-system/
*(Smart judges, not kids....)