Brexit crisis: UK Opposition Leader to trigger emergency debate. Background Briefing: How vaping will make you free. Scientists creating nutrient supplements from horticulture waste. Comey violated FBI policies on Trump memos, says inspector general. Coal miners in class action against labour hire firm over entitlements. Sport with Warwick Hadfield. Conservative MPs critical of new religious discrimination bill. Politics with Michelle Grattan. Business world reacts to Treasurer's call to prioritise investing. Timor-Leste marks 20th year of independence with Scott Morrison visit. Is journalism increasingly treated like a crime? Science with Jonathan Webb: When should the 'anthropocene' era start? Lawyers gear up to fight deportation of Sri Lankan asylum seeker family. British music prodigy Jacob Collier brings his magic to Australia.