He has reported on six wars, including the war in the Gulf, and the wars in Afghanistan and Iraq. In September 2005, he revealed that the British government had been supporting the CIA's "extraordinary rendition" programme. In 2006, he joined the BNP as part of an undercover investigation, he ended up being appointed central London organiser for the party, a position he swiftly resigned. His reporting was criticised for violating the privacy of several people who had joined a legal political party given Cobain himself was a former Amnesty International award winner. One BNP member, English National Ballet dancer Simone Clarke said of Cobain "he'd find more dirt under his fingernails than he'd ever find on me."