The song that sounds in the back in Panamá at the start of the episode is "Lo que sangra" by Soda Stereo.
If you look at major Wysession's uniform you'll see a badge on his right breast pocket with what appears to be the presidential seal. This is a presidential service badge awarded to servicemembers that have served in direct support of the services for the president of the United States.
The terms oligarchs is used, however at this point in history it was not used commonly.
It was only widely used after 1991 and the collapse of the Soviet Union,
Andrés Baiz directed four episodes in the first season, more than any other director. This is the first.