Thats not much I can talk about my work in South America, However the DEA and OGA did gather intel that the FARC and other cartel armies would feed the monkeys their favorite fruits/foods around the camps and drug sites to act as overwatches. When strangers would wander/patrol into the area these monkeys would go nuts and making a shit ton of noise which in the jungle can be heard for great distances..... At that moment you knew your cover was blown and the element of surprise was gone.....