The US cable TV industry is once again in turmoil following the regulator FCC’s decision late February to allow public comments on a proposal from its chairman Tom Wheeler that would require pay TV operators to use set tops that conform to open standards. The move has wider ramifications in that it could herald the end of the set top as we know it. But more significantly it plays into the debate over how best to migrate to all-IP cloud based services, while ensuring that content rights are upheld and emerging security threats countered. Security is at the heart of the debate just as it was when the longest running saga in pay TV began exactly two decades ago in…