It is pretty much becoming something out of a Tom Clancy novel. You could easily imagine a situation room like you see in many a Hollywood movie tracking him. Though Hollywood, this is not.
In a Tom Clancy novel wouldn't the Russian/Chinese spy be fleeing to the United States?
But this has been planned with pinpoint precision and I expect there is a lot of 'back channel' negotiation/diplomacy being carried for safe channel to fly him to Ecuador or wherever.
He will probably only turn up officially when he is out of arm's reach of the USA.