One writer from the Cincinnati News recently posted an article urging Congress to  offer amnesty to taxpayers that have not filed because of unpaid taxes.  The author suggests that by doing so, the IRS would stimulate the economy.  A portion of the article can be found below, but the full text can be  read here:
 
Congress is looking for ways to raise  money as well as stimulate the economy. Many hard-working Americans,  despite good intentions, have fallen behind on their taxes - it could  be divorce, medical problems, or the challenges of a business during  hard times. These life situations often lead to an unfortunate dropping  out of the tax system. If the taxes cannot be paid, the returns are  often not filed.
I urge Congress and the Secretary of  the Treasury to offer amnesty to the 6.1 million IRS non-filers if they  come forward and pay the taxes they owe.
The non-filing is usually accompanied  by a feeling of helplessness. Once behind, interest and penalties escalate  to the point that a taxpayer can never catch up.
The failure to act is magnified by the  fact that interest and penalties double the original tax liability every  five years. Someone paying $100 monthly on a $20,000 IRS debt will find  that the amount owed actually increases, not decreases, because of the  interest and penalties.