the reactor core at ft. calhoun. >> the risk is really very low at this point that anything could go wrong. >> reporter: the nuclear plant was surrounded by water sunday after a flood barrier collapsed flooding transforms. workers switched to emergency generators. the plant's been shut down since april. nebraska's other nuke plant downstream is operating. workers erected a ten-foot wall to keep water out and officials say flooding is not a threat. brad wheelis, abc news. the normally gregarious rod blagojevich was virtually speechless, which is quite unusual, after a chicago jury convicted him of corruption. >> i think he said he was stunned. absolutely stunned. >> stunned, i say. >> the former illinois governor was convicted of trying to sell or trade president obama's vacated senate seat. he's set for sentencing later this year. most legal experts predict blagojevich will likely serve between 10 and 15 years. >> really interesting, that whole case, as we've followed that start to finish. also, this is getting a lot of attention as some controversy surrounding the latest ruling