Also keep in mind that even if you enter with a node in Fuckamericastan and exit with a node in Allahzakia , if you are in the USA you are passively exposed to USA infrastructure on your way to the entry, and if you are visiting a server in USA (or even one that is in some other country but the route to it passes through USA) you are passively exposed to USA infrastructure between your exit and the server. So a fully USA based passive timing attack will still work, even if the VPN nodes you are using are not actively owned by the FBI (which of course they could be, if I was the FBI I would certainly want to have some "anonymous VPN!" nodes in both Fuckamericastan and Allahzakia)