Britain has its seventh Prime Minister in ten years as Andy Burnham moves into 10 Downing Street. A new documentary counts the staggering emissions of US military operations globally. Plus, is Australia becoming a nation of handouts for the rich? A leading economist makes the case for tighter means-testing.Guests:Naomi Smith, commentator and CEO of Best for BritainAbby Martin, journalist and director of Earth's Greatest EnemyProfessor Robert Breunig, director of the Tax and Transfer Policy Institute at the Crawford School of Public Policy, ANU