Many Americans have become enamored of the European approach to immigration -- perhaps without realizing it. Guest workers, penalties, sanctions and deportation are all a part of Europe's mode of dealing with immigrants. The results of this approach have been on display recently in France, where rioting migrant youths again burned cars last week. Across Europe one sees disaffected, alienated immigrants, ripe for radicalism. The immigrant communities deserve their fair share of blame for this, but there's a cycle at work. European societies exclude the immigrants, who become alienated and reject their societies. One puzzle about post-Sept. 11 America is that it has not had a subsequent terror attack -- not even a small backpack bomb in a movie theater -- while there have been dozens in Europe. My own explanation is that American immigrant communities, even Arab and Muslim ones, are not very radicalized. (Even if such an attack does take place, the fact that 4 1/2 years have gone by without one provides some proof of this contention.) Compared with every other country in the world, America does immigration superbly. Do we really want to junk that for the French approach?

have some hope, some reasonable path to becoming Americans. Otherwise we are sending a signal that there are groups of people who are somehow unfit to be Americans, that these newcomers are not really welcome and that what we want are workers, not potential citizens. And we will end up with immigrants who have similarly cold feelings about America.