Our Man in Baghdad says the special forces guys he works out with say that, basically, we've been in open combat with Revolutionary Guards in the area along the Iran-Iraq border for a while. We just call them "insurgents," but everyone knows that they're not just Iranian-trained fighters, they're actual Iranian soldiers in mufti.
I'm not sure what Iran's game is. American troops in the West and East, American naval forces in the Gulf and itchy Israelis a little further away. I think the regime might be trying to quell problems at home by stirring up a fight abroad. How else do you explain their provocations. They must know by now that Bush isn't Clinton.
They should hunker down and try not to annoy us. If they stuck to internal repression and made deals on nukes/missiles, they'd stand a better chance of avoiding Benito M.'s fate (take one rope and one gas station, end one dictatorship). Oh, sorry, according to Powell's old buddy Dick Armitage, Iran is a democracy. :)