Pompeo scrambles to defend Trump claim killing Suleimani will save US lives

* Secretary of state attempts to defend legality of air strike* Pete Buttigieg: ‘Pompeo did not prove strike prevented attack’The Trump administration was scrambling on Sunday to justify its claim that the killing of Iran’s most powerful general was about stopping a war rather than starting one, as tensions spiralled by the hour.Amid growing scepticism over the intelligence behind the lethal strike against Qassem Suleimani, the US president and Iranian officials hurled increasi