Well, there goes the Iranian campaign.
in short, this will cause the Iranians and the Iraqis to pay closer attention to their shared border and might decrease any militant travels through there...
just watch, there will be a similar agreement with Syria and Jordan as well...
Ironically, America and Iran are occaisonal if awkward allies in this, at least in the short term, as both have a vested interest in eliminating Sunni fanaticism and consolidating democratic (i.e. Shiite) control -- the Zarqawis are anything but friends of Tehran. Of course the Iranians want the Shiites to look to Tehran, not Washington, but that's a relatively minor dispute compared to the current battle against the decapitating foreign terrorists.
As soon as the new Iranian Terrorist President is dead, they should begin their talks.
Beginnings of the Greater Islamic Republic?