Is Debtors prison coming back?

The IRS is proposing that any person, who willfully fails to file tax returns in any three years with any five consecutive year period, and if the aggregated tax liability for the period is above $50,000, would be subject a new aggravated failure to file criminal penalty.  This proposal would classify such failure as a felony, upon conviction, impose a fine not more that $250,000 or imprisonment for not more than five years or both.  The fine for a corporation would be no more than $500,000.  This proposal would be effective for returns that are required to be filed on or after January 1, 2008.  This appears to have a limited chance of becoming law and is an example of how the IRS is looking for new tools to “encourage” non-filers to become compliant