Part 5 of 5: The mining company insists that its new plan takes every precaution to protect water, but many local and indigenous people who live in villages midway between the proposed mine and Bristol Bay are skeptical. They rely heavily on subsistence salmon fishing for food and say the water that's at risk is a cultural resource with which they're not willing to gamble. They want the EPA to stick with limits it proposed on mining in 2014 and some are vowing to fight the mine no matter what.