Jellyfish Taking Over World's Oceans; Shutting Down Nuclear Power Plants

Massive swarms of jellyfish are a growing threat to swimmers, the fishing industry, and even the nuclear power industry, a new report argues, and it's high time for scientists to begin researching the causes of the population boom and how to reverse the trend. The new report from the National Science Foundation may tend towards sensationalism (the report is titled "Jellyfish Gone Wild!!"), but the problem is very real.