Two years after Gov. Jan Brewer signed SB1070 into law and then saw it suspended while legal appeals wound their way through the courts, the Supreme Court has finally ruled. But to our basic question of two years ago — Why haven’t the White House and Congress acted on comprehensive reform? — there has been no answer. Monday’s court ruling might settle some legal questions (and introduce others) about federal-state jurisdiction on enforcement. But it is the ongoing failure of national and state leaders to put the problem of illegal immigration on a predictable course toward comprehensive resolution that overshadows SB1070 and its imitators in other states.