Glencore's mining troubles, Brazil's downgrade and Queen Elizabeth

It has certainly been another busy week for the BBC's business news team, following developments like the troubles at the global mining group Glencore, the downgrading of Brazil and reflecting on the long reign of the British monarch Queen Elizabeth. We review the week with Demetri Sevastopulo, Washington Bureau Chief for the Financial Times and Charles Forelle at the Wall Street Journal in London