Who's Really Supplying Weapons to Iraq's Insurgents?

On the same day that the US is holding talks with Iran and blaming that country once again for supposedly supplying weapons to Iraqi insurgents...

The United States says Iran is fomenting unrest in Iraq by supporting Shi'ite militias and supplying weapons such as armor-piercing bombs used to kill U.S. troops. Iran denies it is responsible for violence and blames the United States for unleashing sectarian strife after its 2003 invasion.

...the Washington Post reports:

The Pentagon has lost track of about 190,000 AK-47 assault rifles and pistols given to Iraqi security forces in 2004 and 2005, according to a new government report, raising fears that some of those weapons have fallen into the hands of insurgents fighting U.S. forces in Iraq.

The author of the report from the Government Accountability Office says U.S. military officials do not know what happened to 30 percent of the weapons the United States distributed to Iraqi forces from 2004 through early this year as part of an effort to train and equip the troops. The highest previous estimate of unaccounted-for weapons was 14,000, in a report issued last year by the inspector general for Iraq reconstruction.

Not only that, Bush's new war hero was in charge at the time:

The United States has spent $19.2 billion trying to develop Iraqi security forces since 2003, the GAO said, including at least $2.8 billion to buy and deliver equipment. But the GAO said weapons distribution was haphazard and rushed and failed to follow established procedures, particularly from 2004 to 2005, when security training was led by Gen. David H. Petraeus, who now commands all U.S. forces in Iraq.
[...]
Iraqi security forces were virtually nonexistent in early 2004, and in June of that year Petraeus was brought in to build them up. No central record of distributed equipment was kept for a year and a half, until December 2005, and even now the records are on a spreadsheet that requires three computer screens lined up side by side to view a single row, Christoff said.

And:

The GAO is studying the financing and weapons sources of insurgent groups, but that report will not be made public. "All of that information is classified," said Joseph A. Christoff, the GAO's director of international affairs and trade.

Right. So they can continue to claim that Iran's government is the bad actor here while not providing any actual proof because that's "classified". How convenient.

And let's not forget Iraq's Missing Billions (documentary). No one's been able to figure out where that ended up yet either. But hey, why not blame that on Iran too? Might as well. What has the Bush administration got to lose?