TUC chief Frances O'Grady has told Daybreak that "if we bring the railways back under public control, there would be more money to invest for the future."
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The Australian government said Russia's participation in the Rio 2016 Games risks damaging the reputation of the Olympic movement.
PM Malcolm Turnbull said people convicted of terrorism-related charges would be held indefinitely if they pose an ongoing threat to society.
Democratic National Committee chair Debbie Wasserman Schultz stands down after leaked emails show party actively favoured Hillary Clinton.