A US-Russian agreement to destroy wmd just happened to time the destruction for the same period as the invasoion of Iraq. At one point there was a report that the US destruction effort had fallen way behind schedule. Then there was a report that the destruction of WMD at the Russian site also fell behind schedule. That suggests they might have had substantially more material destroyed than just what we knew we had when the arms agreement was made- maybe because it wasn’t exactly stuff from US or Russian arsenals but was material we were removing in secret from Iraq to prevent it from ever falling into the wrong hands?