Iran, as we have already discussed, has carried out very, very harmful activities inside Iraq. Funding, trainings, arming and, in some cases, even directing the activities of the special groups associated with the Jaish al-Mahdi and the Sadr Militia.

As quoted in "Ranking House Committee Members Grill Crocker and Petraeus on U.S. Progress in Iraq" in The Washington Post (10 September 2007)