The attacks of September 11 aroused fears that chemical storage sites could be terrorist targets, but new federal rules are being called "flawed" and potentially "harmful." How vulnerable are industrial sites? How great is the risk to the public? Does government or industry know best what needs to be done?  Plus, Iran defies the IAEA and, on Reporter's Notebook, from the tabloids to the battleground, Britain's Prince Harry will be shipping off to Iraq.