"Would Be A Shot In The Arm For...": Ex PMs Tell G20 To Tax Super-Rich

Former presidents and prime ministers have sent an open letter to current leaders of the world's 20 largest economies urging support for a global tax on billionaires, which they called a rare political opportunity.

Former presidents and prime ministers have sent an open letter to current leaders of the world's 20 largest economies urging support for a global tax on billionaires, which they called a rare political opportunity.