The pandemic has forced this year's UN General Assembly to be mostly virtual, but will it prove to be an effective way for world leaders to discuss the critical issues of the moment? Ian Bremmer talks to UN Secretary-General António Guterres about the challenges of diplomacy in the Zoom where it happens. The exchange is part of a wide-ranging interview for GZERO World.

The episode begins airing nationally in the US on public television this Friday, September 18. Check local listings.