The way I understand it, who controls the root servers can take down .se as a whole, but not individual .se domains. If the US would take down .se as a whole,

The way I understand it, who controls the root servers can take down .se as a whole, but not individual .se domains. If the US would take down .se as a whole, big diplomatic issues would arise immediately, with the end result of either removing root server control from the US or a split of the domain system (between the US and an opposing global entity). But even then, as long as people inside Sweden have their computer pointed up to their ISP dns server which in turn has it pointed to the .se dns server, turning off .se in the root server would not stop swedish people from using swedish sites without any interruption.