Scenario: US withdrawal from Afgh. frees Iran from US threat. Iran sponsors civil war in Iraq, al Qaeda in Afgh., and builds an A-bomb giving it the ability to act with impunity. Then reduces oil flow to strangle U.S. economy. U.S. power in gulf eliminated.
Four Libyan soldiers said killed in battle with Islamists in Benghazi (Reuters)
from the article: Israel, U.S. discuss triggers for military strike on Iran