I just don't see why Sobran says, "The state simply seizes any powers it craves, no questions asked. Its only limits are technological, not legal." The powers were seized by an insufficiently regulated private company. The scheme did not fail for any technological reason. It is not clear exactly why the program was shut down -- maybe because it was abused, maybe because it was inhumane, maybe because it was not scalable, maybe because the PreCrime company was discredited, I don't know. But it was working.
Sobran really goes off the deep end when he says, H.G. "Wells was a very fallible prophet". Who predicted the future better than Wells? Among other things, he predicted the invention of the atomic bomb. Read more here.