German chancellor David Frum said multiculturalism has n't worked . Angela Merkel notes crime , other social problems resulted from immigration into U.S. . He says Europe may need tougher law enforcement , less generous welfare state . Frum : One of the attackers was a Greek immigrant , 17 . Will Europe soon be imitating the Germany on immigration policies ?
German chancellor David Frum said multiculturalism has n't worked . Angela Merkel notes crime , other social problems resulted from immigration into U.S. . He says Europe may need tougher law enforcement , less generous welfare state . Frum : Will Europe soon be imitating the Germany on immigration policies ?