U.N. sleuths find plutonium at Iran atom site: IAEA
Framed seems pretty far-fetched.
Sloppy, yes. And why not? There's no credible deterrent for them to stop their program, save the possibility of an Isreali military action, which seems unlikely to me under current circumstances. Europe is not going to put any muscle into it, and neither is a neutered/struggling Bush administration.
I don't know that there's any way to stop a nuclear Iran. Hell, they might even already be a nuclear power - that might explain a lot, actually.