Ming's media appearances often get missed. He was on Newsnight on Wednesday night talking about the revelations of poor morale amongst the army in Iraq. He looked and sounded very authoritative. Bear in mind that David Cameron is yet to appear on Newsnight as leader of the Conservative party, despite several offers.
Ming was also impressive on Today on Thursday morning on the BAE/Saudi controversy. His interview can be heard here (0800-0830 - about 14 minutes in).
Ming's credibility and involvement by the media in such issues is significant.