According to the London Times Petraeus will highlight "Iranian involvement" in the recent fighting in Basra.
IRANIAN forces were involved in the recent battle for Basra, General David Petraeus, the US commander in Iraq, is expected to tell Congress this week.
Military and intelligence sources believe Iranians were operating at a tactical command level with the Shi’ite militias fighting Iraqi security forces; some were directing operations on the ground, they think.
One wonders how Petraeus will be able to claim such nonsense when in reality Iran signals backing for Iraqi PM in crackdown
Iran voiced support on Monday for Iraq’s prime minister in a crackdown on a Shi’ite militia but blamed U.S. forces for civilian deaths in the fighting.
…
[Iranian Foreign Ministry spokesman Mohammad Ali] Hosseini, whose comments were translated by Iran’s state Press TV satellite station, said Maliki’s action was aimed at "confronting illegal armed groups" and this was in the interest of Iraq and its neighbors.
The Wall Street Journal notes, that a renewed "blame Iran" campaign is to a great part election propaganda pushed by the Bush/Cheney/McCain camp:
Iran is emerging as a hot-button campaign issue, with the candidates differing sharply on what approach to take toward Tehran and its hard-line leadership. Likely Republican nominee John McCain, who has been delivering warnings on Iran, told reporters ahead of the hearing, "I think you’re going to hear more about the Iranian influence, the arms they’ve provided, the money, the training, particularly the extent of their influence in southern Iraq. It’s pretty extensive, and I think he’s going to be talking about that."
"… as he has been ordered to do," McCain should have added.
McCain will certainly also welcome the news that Iran plans to double the number of centrifuges to enrich Uranium.
Internationally the U.S. is pushed to come to a deal with Iran on the nuclear issues and the U.S. itself asked for renewed talks with Iran about Iraq. Both issues limit the range of the Iran-blame Petraeus can deliver.
If he pushes too hard the international ‘solidarity’ for sanctions will dissolve and new talks with Iran about Iraq will not take place.