Banning open source software is probably not feasible (you can distribute the code as a printed book after all). They would have to: - ban all Internet traffic

Banning open source software is probably not feasible (you can distribute the code as a printed book after all). They would have to: - ban all Internet traffic that uses non-backdoored encryption (all ISPs would be required to report it) - ban all amateur radio equipment, including all products one could use to build a satellite dish (like aluminium foil?..); keep a fleet of radio-direction-finding vans circling the streets Eventually, maybe also ban general-purpose non-backdoored computers.