The United Nations is broke. According to UN Secretary General Antonio Guterres, the institution can’t pay its bills. Members, such as the US, haven’t paid their dues. The UN doesn’t just face a liquidity crisis. An old rule obliges it to pay members back for unspent money, even from dues it never received. The UN Secretariat and some major operations could close by July. The UN is far from ideal. The secretariat and agency headquarters are massive bureaucracies, the General Assembly is widely...