President Biden permits Ukraine to fire long-range U.S. missiles into Russia. Leaders of the world's largest economies are gathering in Brazil. President-elect Trump promises to end fentanyl crisis.
As Brazil hosts the G-20 summit, it is likely President Biden's last international gathering. The meeting's agenda may be overshadowed by the incoming Trump administration.
Omar Nok is at the finish line of a 28,000-mile zig-zag route that began in February. Here's how he approached the adventure, without setting foot on a plane.