As a submariner from the 70s, I knew what the triad was. How or why could a normal person know this unless they investigated themselves. As a Cruz supporter from the beginning I definitely give Donald the pass on this. Sure all the politicians on the floor except for Trump and Carson knew because they get gov info that true outsiders don’t
I certainly respect that service. I was in the USNR and served a couple of years active in the Gator Navy from 67-69. That's probably where I'd heard of the nuclear triad, but I didn't recall exactly what it was when Hewitt first used the term.
Not sure I believe folks who act like it's some common term on par with Mutually Assured Destruction, which most everyone would have heard at one time or another, if they were at least in middle school during the Cold War.