The 16ft-tall structure, sometimes referred to as "America’s Stonehenge", was built in 1980 and inscribed with a ten-part message that may have been meant to help survivors of an apocalyptic event rebuild society

An anonymous left-wing art group known in the 1990s as Luther Blissett are wondering what they have unwittingly helped create

Cassandra Zampini's short film Media Warfare compresses four years of fake news into a harrowing 25-minute survey of America's shattered psyche