Iraq has admitted it has found a bomb with a possible biological warhead, and a stash of documents on weapons disposal, the chief UN inspector said yesterday. Hans Blix, the head of the UN Monitoring Verification and Inspection Commission (Unmovic), described the declarations as "positive", and said they would be investigated further. President Bush, however, dismissed the Iraqi admissions, which came in a series of letters to Mr Blix over the past few days, as token gestures designed to fend off the threat of invasion by giving the appearance of cooperation. The president told journalists he expected to see Saddam...