What were the fundamental misjudgments and missteps that contributed to the post-war internal turmoil in Iraq which now, 18 months later, has spawned an increasing insurgency? Commenting here are Thomas Ricks, Pentagon correspondent for The Washington Post; Walter Slocombe, former director for national security and defense in the Coalition Provisional Authority; John Hamre, president of the Center for Strategic and International Studies; Col. Douglas A. MacGregor (U.S.Army-Ret); Lt. Gen Paul Van Riper (U.S. Marine Corps-Ret); Gen. Joseph P. Hoar, (U.S. Marine Corps-Ret.), Commander, CENTCOM (1991-1994); and Gen. Thomas White (U.S. Army-Ret.).