Vieques resident Nanette Rosa 's two teenage daughters both suffer from cancer . A lawsuit blames fallout from U.S. weapons tests on the island for the high rate of illness . Score: 6 Watch the full investigation tonight on `` Campbell Brown '' at 8 ET .
Vieques resident Nanette Rosa 's two teenage daughters both suffer from cancer . A lawsuit blames fallout from U.S. weapons tests on the island for the high rate of illness . U.S. government says there 's no proof that Navy activity caused widespread illness . Watch the full investigation tonight on `` Campbell Brown '' at 8 ET .