I traveled to New Hampshire to interview Hillary Clinton today and almost was shrouded in the sort of invisibility cloak familiar to Harry Potter fans. Why? Because up until the last minute technical difficulties led us to believe that instead of two working cameras (one on her and one on me) we would only have one.

Such logistical crises are the stuff of TV life. But after frenetic scrambling by my colleague Joanne Fuchs, our camera crew and the operator of our satellite truck from Plymouth NH, the problem was solved at the last minute. My invisibility cloak was shed.