Is it time for an NHS screening programme for prostate cancer?  The disease is the most common cancer affecting men in the UK and kills more than 12,000 men every year. A decision is expected to be made by the National Screening Council later this week.  Now, former prime minister Lord Cameron has become the latest high-profile figure to reveal his own diagnosis and has called for a national programme to target the groups most at risk.  But could an increase in overdiagnosis do more harm than good? Niall is joined by Sky’s science and medical correspondent Thomas Moore to discuss.  You can find out more information on prostate cancer at www.nhs.uk/conditions/prostate-cancer/ (https://www.nhs.uk/conditions/prostate-cancer/)   Producer: Araminta Parker  Editor: Mike Bovill