Back in the day... who really could launch nukes? Hell even today how many people could build a nuke... friggen governments cant even do it. So yes you could get your dozen groups communicating and that stops it from happening. You are able to talk to everyone who can do it. Very diplomatic
Today on the otherhand 23 year old guys control 500,000 zombie botnets. Computer security itself is terrible to the point basically a huge number of independants have the power to do the job. So what are governments doing to open communication with these people? They are trying to identify them in order to arrest or as the usa says "the Department of Defense is prepared, based on the authority of the President, to launch [...] an actual bombing of an attack source or a cyber counterattack." This isnt diplomatic at all.