The agency said the material was mentioned in reports to the U.N.

CNN: Tons of Iraq explosives missing

Resolution 687 and that should have been reported under 1441, with Iraqi testimony that not only did they not tell the U.N. about this, they were instructed not to do it and they hid material.

CNN: Transcript: David Kay at Senate hearing

The resolution bars North Korea from exporting a wide range of weaponry, and "calls upon" all U.N. states to search North Korean vessels, with their consent, for nuclear-related material and other contraband.

WSJ: U.S. Fortifies Hawaii to Meet Threat From Korea