Where are those Iranian arms in Iraq? by Gareth Porter

Where are those Iranian arms in Iraq?
The United States military continues to imply that Iranian weapons are flowing into Iraq to arm Shi'ite groups opposed to the US occupation. Yet US officials have not even come close to providing evidence to support the claims - most weapons most likely are bought on the open market. - Gareth Porter (May 23, '08)

http://www.atimes.com/atimes/Middle_East/JE24Ak02.html