Binney is currently saying mostly the right things. That isn't to say that his story is especially believable. His team of heroes developed a system that "would have worked", had it been used. Yet he also tells us it has been used quite a bit since then, only with all the human rights protections stripped out. It seems as though "terrorism" still happens? Also, in future, we ought to build fewer super-powerful surveillance machines with "To Violate the Constitution, Press This" buttons.