flooded with salt water to aggressive shrimp farmers, families once fertilee lanand ls under a pond. she is not alone. >> [speakaking foreign language] >> it is not just the communities where they are cultivated that it is threatened. the rivers of this region flow a placeorest, providing for river dolphins and crocodile, and a local resource for the community. most shrimp farms in bangladesh stuff themselveve, caught in the rivers usising very fine and ne. for evevery share of cox, an average of 50 juvenile fish will die. this practice is decimating the marine environment. [speaking foreignn language] >> embankments a are used in ths region to protect farmers and communities from storms that regularly hit this coastlinine. illegallyly billed through the embankment.t. it has proven to be catastrophic during times of extreme weather. striking bangladesh several years ago. >> [speaking foreigngn language] >> during the course of the investigation our team also uncovered disturbing evidence to suggest that illegal chemicals are being regularly and routinely used in shrimp farmss destine