The Pentagon must update its operational plans. This is exceedingly strange.
Obama cannot be stupid to the extent of not realizing that his militant brouhaha closes the door to negotiations with Iran—even if he actually believes such negotiations could bear fruit.
There is a small chance that Obama’s opposition to an attack on Iran is similar to Egypt’s opposition to the Israeli operation in Gaza—an attempt to get Iran to let down its guard, leaving it unprepared for the raid. European rhetoric in support of stronger sanctions on Iran might also indicate a trend toward interest in attacking it: the EU countries prefer sanctions to military operations.