By MALCOLM RITTER and MARI YAMAGUCHI - Associated Press Shares
"A plant like Oyster Creek, it's old. Its systems that are used to control plant functions are mostly analog based, and that's true for most of the plants in the United States. So the scenario of some malevolent terrorist pushing a button and causing a plant to melt down, that's far-fetched," Lyman said.
Physicist Edwin Lyman of the Union of Concerned Scientists, an advocacy group that pushes for nuclear industry safety, said it was unlikely that a plume from the Fukushima plant would rise as high as the one from Chernobyl, which means that radioactive material would be deposited closer to the site.