For those who don't know, WMNF -- an independent radio station in Tampa -- has some of the best news and talk (and music!)
Rob Lorei just wrapped up a half hour interview with a rep from the Union of Concerned scientists. Point by point, he explains that the current hype is baloney. He says that Iran's best case scenario, if every possible thing goes right for them, they would have enough material for a single bomb in three years. He says it's more likely to be five or more years out. (Ironically, at least for this edition, Rob's show is called "Radioactivity".)
If you're in Tampa or St. Pete, listen on the radio (88.5)...but anyone can listen online. They archive the shows for a week, you can get to Rob Lorei's show on this page
http://www.wmnf.org/programming/archives.php Navigate around the site from there, you can also listen live. The local news hour at 6 pm is terrific, the first half typically is a smart roundup of national/international news.