David Cohen is Campaigns Editor and Chief Feature Writer at the London Evening Standard. He has led some of the paper's most memorable campaigns, and won the Paul Foot award in 2013 for 'Frontline London' which helped former gang members start social enterprises. David gives us a behind-the-scenes glimpse into life at the 'Standard', shares the ingredients for writing the perfect campaign story, and reveals the challenges and rewards of working with the city's most disenfranchised people.