Rubio warns of global crisis in G20 speech In his opening remarks at the G20 foreign ministers' meeting in Atlanta, US Secretary of State Marco Rubio warned that the world is facing a "critical moment" that threatens the foundations of the global economic order. Rubio called the situation a "moment of choice" for both the United States and the world, pointing to economic and geopolitical crises disrupting energy and food supplies, global trade, supply chains and freedom of navigation. I wonder whose fault it is?