The United States led calls at a G20 meeting Tuesday for greater global cooperation in light of the coronavirus crisis as China insisted that multilateralism should not just be a slogan. Italy welcomed foreign ministers of the Group of 20 major economies to the southern city of Matera for their first in-person talks since the start of the pandemic that has claimed nearly four million lives worldwide. In a sharp reversal in tone from the previous US administration, Secretary of State Antony Blinken called for empowering multilateral institutions to defeat COVID-19, tackle the widening global inequality, and step up the battle to arrest climate change.