What happens to US defense systems in case of a cyber attack? "The American military needs a Plan B, because these exquisite systems upon which we have come to rely so deeply, because they were invulnerable fighting the Taliban, or fighting Al-Qaeda, they're not invulnerable anymore," argues Admiral James Stavridis (Ret.), who also served as NATO Supreme Allied Commander. He discusses the benefit of having analog alternatives for US military operations in a discussion with Ian Bremmer on GZERO World.

Watch the episode: What could spark a US-China war?