HANDS down, the State of the Union’s big moment was Barack Obama’s direct hit on the delicate sensibilities of the Supreme Court Justice Samuel Alito. The president was right to blast the 5-to-4 decision giving corporate interests an even greater stranglehold over a government they already regard as a partially owned onshore subsidiary. How satisfying it was to watch him provoke Alito into a “You lie!” snit. Here was a fight we could believe in. There was more to admire in Obama’s performance as well. He did not retreat into the bite-size initiatives — V-chips, school uniforms — embraced by...