Why can't we let IAEA-inspectors back in?

If we were worried Iraq had WMD that might fall into terrorist hands, why didn't we secure the rad-sites and the borders?

Iraqi nuclear facilities not secure, U.N. says
Watchdog says radioactive material taken out of country
Some Iraqi nuclear facilities appear to be unguarded, and radioactive materials are being taken out of the country, the U.N.’s nuclear watchdog agency reported after reviewing satellite images and equipment that has turned up in European scrapyards.
The International Atomic Energy Agency sent a letter to U.S. officials three weeks ago informing them of the findings. The information was also sent to the U.N. Security Council in a letter from its director, Mohamed ElBaradei, that was circulated Thursday.
The IAEA is waiting for a reply from the United States, which is leading the coalition administering Iraq, officials said.
The United States has virtually cut off information-sharing with the IAEA since invading Iraq in March 2003 on the premise that the country was hiding weapons of mass destruction.
<more>
http://msnbc.msn.com/id/4757287/

Iraq contaminated material disappears
The United Nations' nuclear watchdog says contaminated metal, equipment and even entire buildings previously monitored by UN inspectors in Iraq have disappeared since the war.
The International Atomic Energy Agency chief, Mohamed el-Baradei, says the discovery raises concerns about whether the US-led coalition has been able to effectively monitor sensitive sites.
<more>
http://www.abc.net.au/news/newsitems/s1088705.htm

we are busy planting WMDs in southern Iraq
and if 'er' let the inspectors back in
they'll figure it out

thats why