Desperately trying to not be cynical

Here's what I don't understand about this story about the end of the search for Iraq's nonexistent WMDs...

Rumsfeld insisted at the beginning of the war that

We know where [the weapons of mass destruction] are. They're in the area around Tikrit and Baghdad and east, west, south and north somewhat.

Well, if we knew exactly where they were, why didn't we keep our satellite cameras trained on the WMD facilities so we'd know if (and where) the WMDs moved?

The evidence points less and less towards an "intelligence failure" and more and more towards a "blatant lie by the Bush administration".