Question 1: I think this is a question for a recuriter, who could more accurately give you the information that you need. That said, it seems logical to say that if your spouse is a non-US citizen, they are not eligible to serve in the Peace Corps. Maybe he/she could live with you during your assignment, though. They would have to make their own arrangements to travel to the country and their own arrangements for medical insurance and things like that.

Question 2: If you're a US citizen, there shouldn't be any barriers than the postal service difference. You'll probably get things later than those of us in the US would. If you're not a US citizen, however, you aren't eligible to apply.

Q 3: Yes. All US citizens have them so that the government may track us throughout our entire lives.

Q 4: Though I haven't been through the background check yet (I just sent that form in), it's probably just the usual government clearance. Is the information you provided on your application correct? Did you lie about who you are? Were you actually arressted a few years back but didn't admit to it on your application? Where have you worked? Are you $10,000 in debt with your credit cards?...etc etc etc. Pretty much anything they can attach your social security number to will come up on a background check. At least that's my understanding.

Q 5: Sorry. No idea on that one. =)

 out of  found this valuable. Do you find this valuable?