We talk to C. Robert Cargill, AKA Aint it Cool News' Massawyrm. He is a co-writer of the horror films Sinister and Sinister 2, and Marvel's Dr. Strange. His new book is "Sea of Rust," in which 30 years after the destruction of humanity by robots, a scavenger robot wanders in the wasteland created by the war in this post-apocalyptic “robot western.”