About 20 years ago, when going skiing with a Chilean friend, he pointed to a house on the way up and claimed it was a US Marines training station. On the way to Farellones.
In connection with 18O, a video was circulating of some flaites trying to rob a US diplomat car in a Copec in Vitacura. Very quick action from the suited bodyguards, resulted in 3-4 flaites dropped.
No idea if video was true and if the bodyguards were US officials, but that was the story at the time.