Howdy Sandman; A naval blockade is by definition an act of war. The only country in the world that is capable of blockading the Straits of Hormuz with naval forces would be the U.S. Iran could effectively counter-blockade the passage from the land with Chinese Silkworm missles. That would mean that all oil tankers would be blocked from the Persian Gulf where at least half of the world's oil comes from. An economic embargo of Iran would take a lot longer than a few weeks to take effect. Iran is already under U.S. sanctions and isn't hurting one bit. Iran has common borders with Pakistan, Afganistan, Turkmenistan, the Caspian Sea, Armenia, Iraq, the Persian Gulf, and the Indian Ocean. There is no way in hell that economic sanctions are going to work against Iran. The options boil down to 1) regime change, 2)military action, or 3) let the Iranians have the bomb. The most likely scenario is that nobody is going to do squat and that Iran will go nuclear within a few years. Hopefully, the Iranian government will be a little more responsible than they have been in the past.
UN: Gaza could be 'uninhabitable' by 2020 if trends continue (AP)
from the article: Ahmadinejad can continue to smile while the world argues