News Corp columnist Andrew Bolt was spotted by a tipster on an early-morning flight from Melbourne to Adelaide on Sunday: “He must have offended Rupert somehow as he was back with the plebs in economy. His reading material: How Civilizations Die. According to the tipster he was back to Melbourne on a late afternoon flight on the same day. Perhaps he was preparing for his book launch in the city at the end of this month, hosted at Cory Bernardi’s Conservative Leadership Foundation headquarters.