David Kelly, the UK weapons inspector, who lead dozens of UN teams to Iraq and inspected facilities and sites first hand said Saddam was committed to developing chemical and nuclear weapons. That's the guy who's been there under the UN banner, the guy judged trustworthy to lead an international team. And that was partly based on what they found, partly on how Saddam had excavated previous weapon decommissioning sites to recover parts, and partly because Saddam and his team would repeatedly lie at every turn. Kelly regarded all of the "ready to launch in 45 mins" as made up bullshit, and he repeatedly contradicted the UK and US governments when they tried to make the threat sound more immediate. So despite calling out all the politics bullshit, Kelly was still a supporter of regime change because it was - speaking as someone who'd dealt with Saddam repeatedly - the only way to stop a man who'd used chemical weapons before using them again...