http://www.rollingstone.com/politic...-should-end-his-campaign-but-it-wont-20151216 Was this a gotcha question, and does it make a difference to the voter? As for me, I didn't even know what a "nuclear triad"was until Rubio gave a great answer. But then again, I don't believe this will hurt Trump or anyone else running for POTUS who may not have known the answer. That is why it is important to appoint top notch people to head up your cabinet, people like Fiorina named in her response; and I trust whoever becomes President to do just that. And the one thing I like about the Donald is his ability to surround himself with great people. He seems to be good at delegating. What do you think?