The world's moral failure in Gaza should shame us all, says U.N. humanitarian chief.
He calls on G20 member states to use their influence to end this war and save lives. "An entire people is being stripped of their humanity," he says. "We are doing our best, despite security risks, breakdowns in law and order, access restrictions and personal tragedies" "Your silence will only result in more and more people being thrown into Gaza's open graves," he adds.