Weapon? Think about a world where governments are run by representatives of the citizens using a system that is fully open to the citizens. Ability to communicate with them, for them to see every vote as it happens, and every communication between them. Both the elected and electorate seeing the same system, just with citizens having read-only access to some parts. It was impossible in the past for technical reasons, but could now happen. Spying and leaks would no longer be a weapon because the government would be open by default.