Hanson's arguments here don't apply to nation-states that start off with a large portion of world research resources and stronger ability to keep secrets, as we saw with nuclear weapons. He has a quite separate argument against that, which is that governments are too stupid to notice early brain emulation or AI technology and recognize that it is about to turn the world upside down.
Link: overcomingbias.com/2011/07/debating-yudkowsky.html