These are three Iraqis liars. Chalabi lied about Saddam's WMD. Allawi lied about the "uranium from Africa" claim in a recently pushed [I allege forged] memo. Al-Hadeiri lied about helping to construct 20 below-ground weapons labs.
So far, every single one of these men appears to be liars.
Have we had such liars before, that have helped bring America to a bullshit war? I doubt it.
What ought the punishment be?
Lying to the President is not a crime. What ought to happen is that the entire establishment should turn their back on these people. Allawi and Chalabi must be dropped from the IGC, along with more than half the rest.