To keep our economy growing, we also need reliable supplies of affordable, environmentally responsible energy. Nearly four years ago, I submitted a comprehensive energy strategy that encourages conservation, alternative sources, a modernized electricity grid, and more production here at home -- including safe, clean nuclear energy. My Clear Skies legislation will cut power plant pollution and improve the health of our citizens. And my budget provides strong funding for leading-edge technology -- from hydrogen-fueled cars, to clean coal, to renewable sources such as ethanol. Four years of debate is enough: I urge Congress to pass legislation that makes America more secure and less dependent on foreign energy. All these proposals are essential to expand this economy and add new jobs -- but they are just the beginning of our duty. To build the prosperity of future generations, we must update institutions that were created to meet the needs of an earlier time. Year after year, Americans are burdened by an archaic, incoherent federal tax code. I've appointed a bipartisan panel to examine the tax code from top to bottom. And when their recommendations are delivered, you and I will work together to give this nation a tax code that is pro-growth, easy to understand, and fair to all. America's immigration system is also outdated -- unsuited to the needs of our economy and to the values of our country. We should not be content with laws that punish hardworking people who want only to provide for their families, and deny businesses willing workers, and invite chaos at our border. It is time for an immigration policy that permits temporary guest workers to fill jobs Americans will not take, that rejects amnesty, that tells us who is entering and leaving our country, and that closes the border to drug dealers and terrorists. One of America's most important institutions -- a symbol of the trust between generations -- is also in need of wise and effective reform. Social Security was a great moral success of the 20th century, and we must honor its great purposes in this new century. The system, however, on its current path, is headed toward bankruptcy. And so we must join together to strengthen and save Social Security. Today, more than 45 million Americans receive Social Security benefits, and millions more are nearing retirement -- and for them the system is sound and fiscally strong. I have a message for every American who is 55 or older: Do not let anyone mislead you; for you, the Social Security system will not change in any way. For younger workers, the Social Security system has serious problems that will grow worse with time. Social Security was created decades ago, for a very different era. In those days, people did not live as long. Benefits were much lower than they are today. And a half-century ago, about sixteen workers paid into the system for each person drawing benefits.