It appears to be just a matter of time before Iran possesses an operational nuclear weapons capability.  While the United Nations Security Council recently passed its fourth round of sanctions against Iran, if history is any guide, it is unlikely that this sanctions package will be any more effective than the previous three.  Each of these sanctions packages have failed to achieve their stated objective of stopping Iran’s production of nuclear fuel.  The options for stopping Iran are dwindling–as is time.  There are, in fact, no attractive options for U.S. policymakers.  These include:  (1) accept a nuclear-armed Iran, (2) continue with sanctions, (3) support an Israeli military strike against Iran’s nuclear weapons complex, (4) launch a U.S.-led military strike…