You seem to not know the difference between facts and "accusations" so, just one more time, I will help point out the FACTS.
This is the first article I opened and it is from the Christian Science Monitor:
http://news.yahoo.com/romney-tax-returns-missing-report-162231135.html
"Pundits, political partisans, and amateur CPAs are poring over the numbers in Mitt Romneys tax returns. Whats missing, tax experts say, are the details of Romneys retirement account from Bain Capital, including investments in offshore accounts in Bermuda and the Cayman Islands."