SIGNIFICANT STEP FORWARD

Iraq's Governing Council is due to sign an interim constitution to guide Iraq to sovereignty and elections, as U.S. forces hunt the man they say is behind the deadliest attacks since Saddam Hussein's fall.

The law was expected to be signed by the 25-member U.S.-appointed council on Friday in a ceremony delayed by two days because of national mourning for at least 181 people killed in attacks on Tuesday.

You can read the highlights of the interim constitution here.