The Iraq: Post-Saddam Governance and Security report by the Congressional Report Service notes that The formal US-led WMD search ended December 2004 but the United Nations Monitoring, Verification and Inspection Commission (UNMOVIC) is still formally active.
A draft resolution was only circulated this month to end UNMOVIC's work, which costs US $10 billion per year drawn from Iraqi revenues.
The report notes that The primary theme in the Bush Administration’s public case for the need to confront Iraq was that Iraq posted a “grave and gathering” threat that should be blunted before the threat became urgent.