years from dell. and that's the moment when i said i want to focus on the disputes that are inevitable. i met the steadily growing number of investor state disputes the global power of international investment tribunals has reached a moment proportions at the center of this case is a company that has caused suffering in both the u.s. and peru. the branco group has a long track record as a polluter. it's owned by iran that the american billionaire industrialist he began his career as a rule street credit. broncos' lead smelter poisoned the small town of herculaneum in the state of missouri mining contamination by its subsidiary don't run peru did the same to not arroyo high up in the andes the 2 communities joined forces to take a stand against rancor. back in about