I f President Clinton wants to see how activist government can solve social problems with strong public support, he should take a few days to visit Canada. With Toronto's World Series victory, the nationwide referendum on constitutional reform (including the status of Quebec), and the controversy over the North American Free Trade Agreement, Canada lately has been in the American news more than at any time in recent memory. But despite all this attention, there's a Canada few Americans know about-- a nation whose citizens are better off than their American counterparts in many ways: safer cities, less poverty, fewer homeless, lower infant mortality, and healthier workplaces. Clinton has pledged to introduce, during the first 100 days, comprehensive health care reform. Thanks to the recent national debate over our country's health care crisis, many Americans now know that Canada does a better job of providing decent health care for all its citizens at a reasonable cost. The U.S. spends...