Yes, but I believe the hopsital in Colon Panama is not. That leaves the fact that we all now know....
McCain was a Colon birth.
McCain was proudly flying his Colon flag just yesterday.
Seriously though, regardless of the on or off base controversy, the Canal Zone was not under the full jurisdiction of the United States. It was not sovereign territory, it was merely leased. If indeed it were sovereign territory, cam someone please explain how Jimmy Carter could just up and decide to cede it to Panama? He couldn’t. That is not a power of the Executive Branch.