If he has no worries, then why not release them? I don't know Mitt personally so I can't verify his character-- only the TV character , still no help.Tax returns released by Mitt are not in conjunction with his own father's honorable legacy. Not one candidate since has ever refused to prove themselves to the public. 2010 is missing elements that detail the earned & unearned income plus the tax credits (both refundable and nonrefundable) along with all deductions/expenses allowed. These numbers are essential to understand what bad investments that were made in order to offset the high yielding ones, generating a AIG total for the IRS but not the actual revenues received. 2011 isn't a return.The IRS is investigating these tax evading tricks.