Well Season 2 is at an end and I've enjoyed it a lot especially as the characters have been fleshed out a lot more with some back story. The Mexican cartels thing is actually pretty logical and taken to a logical conclusion you could see them doing very well in a post apocalyptic world.
"I prefer the company of animals more than the company of humans.
Certainly, a wild animal is cruel.
But to be merciless is the privilege of civilised humans."