Can I get a tax accountant up in here, please?

I know you guys are having a fine time over there deciding whether Mitt Romney's religion should/does matter, and that is awesome.

But when there's a break in the action, I'd love it if some of you more economic-smart folks would be interested in figuring out the following:

(Or if you've seen anyone else share these numbers it would be great.)

1. How much would Romney have paid in taxes if the "Cayman Capitalist" loophole were closed? (i.e. no offshore accounts)

2. How much more total Federal revenue if the Cayman Capitalist loophole were closed? (for all taxpayers)

3. Since State income tax is calculated based on Federal income numbers, how much additional revenue would the State of Utah have gained if Mitt's Cayman Capitalist loophole were closed?

4. How much (roughly) more revenue would come to states, cities, etc. if the Cayman Capitalist loophole were closed?

My goal is to make a strong case that Made in America money can't possibly create American jobs if it's sitting in accounts in the Caymans or Switzerland. (If it's Made in America, it oughta be Paid in America, either to the govt in the form of taxes, or to American workers, not sent to who knows where.)

And, what does happen to money sent to the Cayman Islands? Does it ever come back to the USA?

My apologies if this information is widely available elsewhere!