It shouldn’t be necessary at this point, but given the pockets of feigned disbelief that remain abroad, it deserves repeating: The Iranians are developing nuclear weapons. Rhetorically, they continue to maintain the pretense of pursuing peaceful nuclear power, but the structure of their program belies its true nature as a weapons development effort. Their near-exclusive focus on isotopic enrichment, their construction of clandestine facilities, and their recent decision to enrich uranium to levels higher than what is necessary for commercial power plants are all signals that should remove whatever doubt remains of Iranian intentions. What Iran has achieved to date amounts to a small but growing breakout capacity. If they continue on their current pace, by mid-2010 they will have enough low-to-medium enriched uranium to produce several atomic bombs and the centrifuge capacity to bring that material to weapons readiness within a few months.