Syria has passed the tests from the International Atomic Energy Agency (the IAEA).

The UN's nuclear watchdog says there is nothing to support America's claims that it was building a secret nuclear reactor in the desert. The tests began following an Israeli air raid on a building which it claimed was being used for a nuclear project.

Israel bombed in September 2007. It stayed unusually silent for days, until Syria made the attack public. America waited until April 2008 to make its claims.

Washington alleged the site was a nearly finished reactor. They showed pictures which looked identical to a reactor in North Korea (although, the photos could have actually been sites in North Korea). Israel released pictures apparently showing North Koreans in Syria.

Satellite images showed the site had been leveled after the attack. America was surprised Syria didn't just leave the bombed-out building as it was. But simply removing the bricks and cleaning the ground would not have removed all traces of nuclear material. The Israeli explosion would have dispersed the materials for hundreds of meters in tiny amounts.

The UN investigation followed soon after the American claims. IAEA investigators were given free access to the site in June 2008.