what do you mean, you wrote a paper on this?
paper for what? college? and editorial?
And no, there shouldn't be a humanitarian draft.
I spend a year doing national service work in an AmeriCorps program, and worked with and have friends who were in the Peace Corps.
Most agree that COMPULSORY service winds up being less productive than freely chosen service. There was a recent article (either NYTimes or Wash Post, can't remember which) about high schoolers and "volunteering" has lost it's meaning because it is now compulsory. Every kid does some sort of volunteering, most of it crap, and few say they get anything out of it, or actually contribute to society at large.
A similar part of the problem is that it is often difficult for find quality service projects. I saw this often in AmeriCorps where some of my project were incredibly worthwhile and cost effective, others were a waste of my time - and hence taxpayer money. Unfortunately it takes time and work to set up valuable and effective service projects.
Another one of the arguments against ANY national service program - be it military or national service - is that it is frequently floated as a way to "give youngsters respect/discipline/patriotism/etc." It's a fraudulent argument. Did our parents - who didn't do these things - not have respect? Maybe since they failed to teach the younger generation, they should be the ones doing the service too? Maybe we should make a 2 year compulsory military service when we hit 21 and 2 year compulsory service work when you hit 50 (and those over that have to complete their work too.)? I'd bet you'd find the idea a lot less tolerable.
One of the things that defines the U.S. is freedom - and part of that is freedom to do what you want with your life (except in times of national emergency.) Don't require me, or anyone else, to do anything. We don't need compulsory sports training academies, we don't need compulsory service to teach our young a lesson, we don't need compulsory military service to bolster patriotism.
Finally, what we SHOULD do, is create more opportunities for people to serve. Nothing wrong with increasing the Peace Corps budget and adding more workers, creating better incentives (greater loan paybacks, education stipends, etc.) for those who do serve. That's what should be done.