"We will neutralize the insurgents in their own land: Iran."
The worst trouble-makers--the Sunni terrorists--are coming over from countries like Jordan and Saudi Arabian, not Iran.
"That will calm Iraq down enough for Iraqis to their to get their nation in better (but not perfect) order."
There are plenty of arguments to be made in favor of war against Iran, but I really doubt doing so would stabilize Iraq.
While the general says Iran is fueling Iraq's Shiite insurgency, he also says members of the Sunni insurgency - made up largely of former members of the Saddam Hussein regime - are increasing efforts to make peace with the new Iraqi government.
"The Sunni insurgency has been, since the elections, reaching out and looking for ways to reevaluate their options and to come out of the resistance against occupation with honor," noted General Casey. "And we and the Iraqi government have several different strands of contact going on. And there are opportunities in that regard that we just haven't had before."