I'm sorry, but these are not tanks.
These are just armored trucks. A tank is a tracked vehicle that has a cannon on it, typically situated inside of a turret of some kind. There are self-propelled guns, which are artillery pieces, there are vehicles that have direct-fire weapons that are fixed in place, and then there are armored personnel carriers and reconnaissance vehicles. What you see in this video are crudely up-armored trucks, not tanks.
Why is there this excessive hype when it comes to the drug war? The real story is that there are innocent people caught up in the violence. The rule of law simply doesn't exist in modern Mexico anymore. All of this is because millions of Americans are illegally buying drugs and are spending billions to fuel the destruction of Latin America.