This isn't the private sector anymore Mitt. If you want to be the President, you need to show the people your taxes. You told Harry Reid to "Put up or shut up", why don't you follow your own advice. What do you have to hide?!
Why is this important?
The tradition used to be that candidates gave out general information on their income and financial assets via a statement. That all changed in 1967 when George Romney released his actual tax returns for the previous 12 years. “One year could be a fluke, perhaps done for show,” the elder Romney said then. His son, the presumptive Republican nominee in 2012, prefers to show almost nothing. Mitt Romney has only released his tax returns for 2010 and an estimate for 2011. That’s not good enough.