The chemical weapons that have been recovered by US forces in Iraq were all made before the 1991 Gulf War and were too degraded for their intended use, US intelligence officials said. ADVERTISEMENT Republican lawmakers have cast the disclosure that about 500 chemical weapons have been found in Iraq as evidence that Saddam Hussein had a stockpile of the weapons before the March 2003 US invasion of Iraq. But the intelligence officials, who briefed reporters on condition of anonymity, said the weapons were too degraded to have posed a threat to US forces in March 2003. They said all chemical...