Fears are rising in the US that the popular blue-fin tuna caught off the west coast contains radiation. Scientists say last year's nuclear disaster in Japan is to blame, but some claim these radioactive findings may only be the tip of the iceberg. RT's Madina Kochenova reports.
RT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 500 million YouTube views benchmark.