I was watching a TV show and they had a scene at a CIA substation in Paris. The French Intelligence knew about this substation and didn’t seem to have a problem with it. So it made me wonder about CIA substations (note: not CIA safe houses). Do American allies not care if the CIA has a substation on their soil (just like they obviously allow U.S. Embassies and Consulates to be on their soil)? Or, is this just Hollywood? Are there any foreign intelligence substations on American soil?