BBC News By John Ware Twenty-five years ago, the BBC's Panorama programme landed a scoop rivals the world over wanted - an interview with Diana, Princess of Wales. Her son and heir to the throne, Prince William, has now launched an unprecedented attack on the corporation over that interview. The programme, which attracted a UK audience of 23m, was a career-defining moment for reporter Martin Bashir. But after accusations resurfaced last autumn that Bashir misled the princess to gain her trust, the BBC established an inquiry led by the former Supreme Court judge Lord Dyson. That inquiry has judged Bashir to be "unreliable", "devious" and "dishonest."