As far as Breitbart goes, like so often happens, when the visionary is gone, the organization ofttimes loses it's edge and focus, becomes sloppy and dissipates. I generally like Breitbart.com. I hope they stay sharp.
Scalia is not saying that SCOTUS should not decide a constitutional question. He’s saying that SCOTUS is the least qualified of the three branches to resolve the question of reasonableness because they are not privy to the details of national security threats.