Obama administration officials told a Congressional panel Wednesday that economic sanctions against Iran are having an impact,  and the international community is cutting back on commercial ties with Iran.  Across town, another Obama official told a group of Iran experts that the U.S. still wants badly to engage with that nation.  Both events played out against a backdrop of leaked documents quoting Arab leaders as urging the U.S. to consider military action against Iran.  VOA’s Laurel Bowman has more.