Reporter Shelley Jofre investigates how Britain's biggest drug company, GlaxoSmithKline, deliberately misled doctors into prescribing the anitidepressant Seroxat to teenagers even after one of its own clinical trials indicated that they were six times more likely to become suicidal after taking it. She reveals the secret trail of internal emails which show how GSK manipulated the results of the trial for commercial gain and reveal how the company continued to deny safety problems with the drug.