Putting tuberculosis under the microscope

James Tytko, Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs.This week: A new rapid way to tell heart failure from a chest infection - just with a sample of breath. How the perseverance rover is getting on looking for life on Mars. And the imperceptible sounds in music that make people want to dance.Plus... we’re putting TB - tuberculosis - under the microscope to hear why as many as one person in 3 are still being infected by a disease that’s been with us for thousands of years.