Porter cites differences between new Iran president, Rouhani and Ahmadinejad; Obamaâs fear of Israel Lobby controlled Congress re sanctions and negotiations; notes trips to Israel of AirForce chief, Gen. Welsh and Joint Chiefsâ Gen. Dempsey and their differences, Air Forceâs close ties to Israeli airforce vs Dempsey, Pentagonâs, restrained view; describes Iran sanctions as âact of war,â refers to Israeli (Yinon) strategy to create religious divisions in Arab world, noting risks; of Israelâs problems with Hezbollah; laments vanished antiwar movement; announces new think tank. ;