Despite watching European welfare states collapse under the weight of their own debt, those running Washington are leading us down precisely the same path. With the debt surpassing $13 trillion, we can no longer avoid having a serious discussion about how to address the unsustainable growth of government.

Unfortunately, rather than make meaningful contributions to this conversation and bring solutions to the table, Democrats have attempted to win this debate by default. Relying on demagoguery and distortion, the left would prefer that entitlements - often labeled the "third rail" of American politics - remain untouchable, and the column by Paul Krugman of The New York Times is indicative of the partisan attacks leveled against the plan I've offered, a "Roadmap for America's Future."

When I introduced the "Roadmap," my hope was that it would spur an open and honest discussion about how our nation can address its fiscal challenges. If we are truly committed to developing real solutions, this discussion must be free of the inflammatory rhetoric that has derailed past reform efforts. In keeping with this spirit, it is necessary to clarify some of the inaccurate claims and distortions made recently regarding the "Roadmap."

The assertion by Krugman and others that the revenue assumptions in the "Roadmap" are overly optimistic and that my staff directed the Congressional Budget Office not to analyze the tax elements of the "Roadmap" is a deliberate attempt to misinform and mislead.

I asked the CBO to analyze the long-term revenue impact of the "Roadmap," but officials declined to do so because revenue estimates are the jurisdiction of the Joint Tax Committee. The Joint Tax Committee does not produce revenue estimates beyond the 10-year window, and so I worked with Treasury Department tax officials in setting the tax reform rates to keep revenues consistent with their historical average.

What critics such as Krugman fail to understand is that our looming debt crisis is driven by the explosive growth of government spending - not from a lack of tax revenue.

Krugman also recycles the disingenuous claim that the "Roadmap" - the only proposal certified to make our entitlement programs solvent - would "end Medicare as we know it."

Ironically, doing nothing, as Democrats would prefer, is certain to end entitlement programs as we know them, and in the process, beneficiaries would face painful cuts to these programs. Conversely, the "Roadmap" would pre-empt these cuts in a way that prevents unnecessary disruptions for current beneficiaries.

It reforms Medicare and Social Security so those in and near retirement (55 and older) will see no change in their benefits while preserving these programs for future generations of Americans. We do not have a choice on whether Medicare and Social Security will change from their current structure - the true debate is if and how these programs will be made solvent.

Far from the "radical" label that critics have tried to pin on it, the Medicare reforms in the "Roadmap" are based on suggestions made by the National Bipartisan Commission on the Future of Medicare, chaired by Sen. John Breaux (D-La.). That commission recommended in 1999 "modeling a system on the one members of Congress use to obtain health care coverage for themselves and their families." With respect to Medicare and Social Security, the "Roadmap" puts in place systems similar to those members of Congress have. There has been support across the political spectrum for these types of reforms.

By dismissing credible proposals as "flimflam," critics such as Krugman contribute nothing to the debate. Standing on the sidelines shouting "boo" amounts to condemning our people to a future of managed decline. Absent serious reform, spending on entitlement programs and interest on government debt will consume more and more of the federal budget, resulting in falling standards of living and higher taxes as we try to sustain an ever larger social welfare state.

The American people deserve a serious and civil discussion about how to reduce our exploding debt and deficit. By relying on ad-hominem attacks and discredited claims, Krugman and others are missing an opportunity to contribute to this discussion and are only polarizing and paralyzing attempts to solve our nation's fiscal problems.

I reject the notion that these problems are too big or too difficult to tackle or that it is acceptable to leave future generations of Americans an inferior standard of living than we enjoy. The "Roadmap" shows that a European-style social welfare state is not inevitable, that it is not too late for our nation to choose a different path and that we can do so in a way that preserves our freedoms and traditions.

Rep. Paul Ryan (R-Wis.) represents the 1st Congressional District.