Can Sallie Mae dip into my Roth IRA, investments, savings, cd's to pay off a student loan?

I'm forced to go overseas to earn my living because I can't find a job here. I owe 40k in student loans and I can't pay for them, nor do I want to because the way I see it, this country either owes me a job or an education so I'm taking the education and going where I'm appreciated. Anyway, if I put some of my future hard earned money into a Roth over here and other investments, can Sallie Mae touch any of it to pay for the student loan. On paper, I'm unemployed so I've been going to the Sallie Mae website every 6 months to tell them I'm unemployed. That seems to fine fine with the SOB'S because they just keep tacking on interest to the principal, bloodsucking basta-rds! So can they touch any of my money in investments, or should I consider international investments instead? Thanks ahead of time for your answer!