The top US military commander in Afghanistan, General Stanley McChrystal, has been dismissed by President Barack Obama after he criticized leading administration officials. He had earlier agreed with Mr Obama that his statements in Rolling Stone magazine showed ï¿½poor judgementï¿½. News that General McChrystal was standing down came after he met Mr Obama at the White House. He will be succeeded by General David Petraeus, US officials say. Jeb Sharp talks with Scott Wilson, White House Reporter for the Washington Post.