One thing I have learned over the years from firsthand experience and knowledge is that despite common belief and conception, MOST of the offshore accounts are not being used by the mob, drug dealers, or for other illegal means. The majority of them are held by law abiding citizens and such.
What impact does this (or do you think will it have) on US interests and economy? Think more people will move the funds into stocks and foreign bonds or bring it home and reinvest here (which might cause a small uptick on the index).