Bankrupt discount carrier Spirit Airlines ceased operations on Saturday, the industry’s first casualty linked to the Iran war, after failing to secure creditor support for a US government bailout plan.The collapse of the carrier following a doubling in jet fuel prices during the two-month-old Iran war will cost thousands of jobs. It is a blow to US President Donald Trump, who had proposed US$500 million to save Spirit despite opposition from some of his closest advisers and many Republicans in...