As Fear Itself and Martin Hyde have pointed out, the government has the legal right to conscript its citizens, and has gotten citizen resistence in every war prior to Vietnam. The citizens least able to mount a defense against a draft, the people who would garner the least sympathy from the general populace, would be prisoners. They have no right to vote, no likely claims to conscientious objector status or, bluntly, much else to offer. kanicbird rightly points out that prisoners cost a lot. Well, maybe you can take the most promising of them and make them into soldiers.
I’m not suggesting it’s likely, just that it’s not completely without some merit. I’ve made the assumption that in a population group of roughly 2.5 million people, you could probably find 10% of them – quite minimally – willing to fight, willing to accept skilled training and are no more dangerous to our side than any other indoctrined combatant. Prison life is quasi-military anyway, far more than civililans: you wear a uniform, in a heirarchy of authority lacking women, in a controlled environment enforcing strict rules, timetables for wake-up, roll calls, activity, liberty and meals, spartan living conditions, with barracks and guards, in a culture designed to keep you physically fit. Military conditioning has been used in Pennsylvania boot camps for close to a decade now and its parolees have less recidivism, and commit less crimes, than those coming from traditional prisons.
You can minimize any danger to our side by keeping prison conscripts primarily in segregated units until they can be introduced into standard military units, based on merit.
Monty’s points are well-considered, but aren’t all that insurmountable. The military doesn’t accept individuals with felony convictions – so you start with the ones eligible for a waiver. The military kicks out people who get into trouble with drugs, and they should do so here as well. The military doesn’t want a general draft – but they will accept one if so ordered. And finally, if all branches of service met November active-duty recruiting goals, this might help insure that they continue to do so.
Again, I agree with the prevailing sentiment that I don’t think any kind of draft is very likely, just that a prisoner draft is somewhat more likely to happen than an open draft. Besides, we’ve seen the “Dirty Dozen” movies. It’s not like prisoner-soldiers are completely unheard of.