FARC
Revolutionary Armed Forces of Colombia, mentioned as a group that controlled parts of Colombia, which the Colombian army and police could not access before being destroyed with US help.
Videos Mentioning FARC

How to Succeed at Hard Conversations | Chris Voss
Andrew Huberman
Colombian rebel group mentioned in the context of a kidnapping case in Venezuela.

Roger Reaves: Smuggling Drugs for Pablo Escobar and the Medellin Cartel | Lex Fridman Podcast #199
Lex Fridman
A Marxist-Leninist guerrilla group in Colombia. Roger refers to them as one of the three forces dividing Colombia, alongside the military and the 'Contras', and mentions an incident where they kidnapped Jorge Ochoa's sister.

A Tale of Cancellation: A Conversation with Meg Smaker (Episode #300)
Sam Harris
Marxist rebel group in Colombia, whose actions against landowners were countered by the AUC, leading to cycles of violence Meg witnessed.

Further Explanations w/Condoleezza Rice (Lessons from the Hoover Policy Boot Camp) | Chapter 4
PolicyEd
Revolutionary Armed Forces of Colombia, mentioned as a group that controlled parts of Colombia, which the Colombian army and police could not access before being destroyed with US help.