So what exactly did they bomb?

Last year Israel bombed a site in Syria that they (and the United States) said was a nearly finished, North Korean designed nuclear reactor meant to be the cornerstone of a secret Syrian atomic weapons program. But early results of testing by scientists from the International Atomic Energy Agency, the world's nuclear watchdog group, have not found any of the telltale signs of a nuclear reactor.

There are more tests to be done on the samples, but some officials from the IAEA doubt they will give different results from the first tests.

So the question is what was at the site at Al Kibar? One possible explanation is that the bombs dropped by Israel did not scatter nuclear material around the site; another is that the Syrians were able to scrub the site before the IAEA inspectors arrived. Syria is refusing to allow inspectors to look at several other sites in the country suspected of being part of a weapons program.