The British elite families continued their drug trade control after the Opium Wars.

Using sections of the international intelligence community for lower level operations, they created HSBC for the drug trade money laundering and stashing.

Even Lyndon LaRouche figured all this out, as evidenced in the book his organisation funded, called "Dope, Inc".

When you get that much drug money, you have no alternative but to set up banks to handle it.

Don't hold your breath that anything will happen to HSBC though, because the cancer spread into the other banks long ago.