The second mass shooting at Fort Hood in five years means it’s time to reconsider whether troops should be allowed to carry on base. GOP Rep. Michael McCaul says yes; he’s the lead guest this morning on both “Face the Nation” and “Fox News Sunday.” Former Joint Chiefs chair Mike Mullen and Gen. Peter Chiarelli will be on “Meet the Press” and “This Week,” respectively, to weigh in as well. First question for all of them, hopefully: If we’re not bothering to check whether people are bringing guns into military facilities, why not formally allow them to do so?

Elsewhere, David Gregory will ask businessman Shaun McCutcheon on “Meet the Press” whether he doesn’t feel terribly guilty about his big Supreme Court win this week, and if not, why not. The full line-up is at Politico.