"People were more obsessed with developing the coalition to overthrow Saddam than to execute the president's policy of preemption against terrorists," according to terrorism expert and former National Security Council member Roger Cressey.
In January 2003, the threat turned real. Police in London arrested six terror suspects and discovered a ricin lab connected to the camp in Iraq.
The Pentagon drew up still another attack plan, and for the third time, the National Security Council killed it.
Military officials insist their case for attacking Zarqawi's operation was airtight, but the administration feared destroying the terrorist camp in Iraq could undercut its case for war against Saddam.
The United States did attack the camp at Kirma at the beginning of the war, but it was too late -- Zarqawi and many of his followers were gone. "Here's a case where they waited, they waited too long and now we're suffering as a result inside Iraq," Cressey added.