As speculation grows that the US plans to take action against Saddam Hussein, Terry Taylor, a retired British colonel who became a UN weapons inspector, recalls searching for Iraq's biological weapons. "We were trying to discover all the sites which had equipment which could be used to support a biological weapons programme, everything from dairy factories upwards. It was like looking for a needle in a haystack. I was employed mostly on surprise inspections, ones that were rather challenging, ones that perhaps merited a UN commissioner being the chief inspector. This made the Iraqis pay a bit more attention even...