I was under the impression that the Panama Canal is still under control of the yanks. Did they not back the uprising to get rid of Noriaga (think that is how you spell it) just as their lease on the canal run out. Once he had been caught the yanks turned their backs on the rebels and Noriaga was freed. Once free he took his revenge on the rebels who had a lot of the armed forces on their side. Then because they did not have enough armed forces to protect the canal the yanks stepped back in to take control again to maintain security of the canal. Not to sure if it happen exactly like that but know that they used the rebels to retain control. Just a bit of trivia on the subject.
That's the way the mop flops.
My thanks to Brian for this site.