Israel is not a party to the just signed Geneva Agreement, which includes the United States, Russia, China, UK, France, and Germany; she may decide to bomb the Arak reactor and thereby eliminate one certain route for Iran to gain a nuclear weapon. Recall that India's 1974 nuclear test explosion used Pu-239 made in the CIRUS "research" reactor, which had been constructed in the 1950s with US-Canadian assistance. Israel has a lot of experience in destroying such reactors. In 1981 they bombed Osiris, a similar reactor under construction with French help in Iraq. In September 2007, in Operation "Mivtza Bustan"...