Do we really want to create another insurgency, even if it is in a hostile state? Sounds like a bad idea to me:
Perhaps we could do to Iran what the Iranians are doing to us in Iraq, where they are funneling weapons and money to militias that are killing our soldiers... A little-known fact about Iran is that it is only 51% Persian. The rest of the country is made up of ethnic minorities, many of them quite restive...
The Mujahedin Khalq, a leftist political cult, mounted attacks on Iran in the 1980s and 1990s from bases in Iraq. Since the U.S. invasion of Iraq, American troops have detained thousands of its activists. They could easily be set loose to make trouble across the border.