The camouflage hunting camera outside my edit suite always gets a bewildered chuckle from visitors. But two years ago, it was a deadly serious precaution against the SWAT team that was at any moment likely to raid us for the raw footage of what would become the documentary channel film Nobody Wants To Talk About Jacob Appelbaum — and when they did, at least there'd be a record. The motion-sensing hunting camera outside the edit suite was a condition to gain access to the film's protagonist, one of many unprecedented — in my experience — which also included a heavy-duty...