Presented by Jenni Murray. Television comedy writer and actress Sharon Horgan talks to Jenni about her path to success, her particular brand of black comedy, and her unromantic view of female friendship. Sri Lankan journalist Lasantha Wickrematunge paid no attention when he was sent a death threat daubed in red paint on a page of his own newspaper. Then on Thursday 8th January 2009 he was killed as he drove to work. His wife Sonali speaks to Jenni about her late husband and his desire to run what he claimed was an independent newspaper in a country that has been at civil war for almost 30 years. Corporate Public Responsibility: when should you fall on your sword? Jenni discusses the issues with Sophia Christie, Chief Executive of Birmingham East and North Primary Care Trust, and Ruth Bender, Senior Lecturer at Cranfield School of Management. To mark Kew Gardens' 250th anniversary, a display called Tropical Extravaganza has opened, featuring thousands of orchids and tropical flowers. Charlotte Njeru speaks to Dr David Roberts, an orchid botanist at Kew, as well as some of the flowers' admirers. Including the drama Reading Between the Lines.