Those measures require the federal government to purchase billions of dollars worth of milk to keep prices stable, with stability defined in 1949 terms.
Since it is (almost) universally accepted that full employment is best achieved in a stable economy, price stability is, in practice, the Federal Reserve's prime concern.
All of this is critical to American interests, because a stable Iraq is important for stability in the Middle East, and because Iraq will be a valuable ally in this vitally important region for years to come.