When Israel flew jets over Syria last September, there was much speculation about what they were doing.
Now we know: they were undertaking an airstrike against a Syrian gas-cooled graphite-moderated nuclear reactor, being built (secretly, and with North Korean help) not to produce power, but to produce plutonium for nuclear weapons. The airstrike destroyed the reactor for good. [Report here at the Washington Post. Video here released by the US Government detailing Syria's covert nuclear reactor and the North Korean involvement in its construction. Hat tip Prodos.]
Given the nature of fourth-generation warfare -- which requires that some hostile entity provide supplies and materiel to keep terrorists in operation -- and given the nature of nuclear weapons production -- which requires the industrial infrastructure only a hostile state can provide -- the whole civilised world can say Thank You Israel for making sure the plutonium-based nukes that would have emerged from this hostile facility and straight into the hands of terrorists were never, ever produced.