Grown T News Today

A u.n. watchdog agrees. the first batch could fill three olympic size swimming pools. 31,000 tons of water will be released by next march. critics charge the long-range impact is unclear. in tonights "eye on america," a closer look at the icon of the american west: the bison. 60 million bison once robed north america. cbs of the yamaguchi reports on the enormous efforts to reintroduce this majestic animal to native amamerican tererritor. >> repororter: at ththe fort pek inindian reserervation in...