If they can cut off access to Iran.....
Couldn't they also cut off the access from the Nigerians, etc, bombarding everyone with their "free money" scams?
I am confused about Yahoo!'s and Microsoft's actions here. When all the sanctions were going against Saddam and his merry band, I don't recall ever hearing of their e-mail getting cut off (perhaps I was out of the loop?).
If you wait until next year, perhaps Hillary and her Merry Maidens will be in charge, and they can all sit down for tea and sort it all out, unless she is in her "I hate all men, especially my husband" mode, then you might want to get out the radiation suits.
<Coat, Hat, Door>