Criterion’s Blu-ray release of Alex Cox’s masterpiece Walker (1987) revives this deconstruction of America’s self-mythologizing at a time when its themes are more pertinent than ever; imperial attacks on domestic and foreign societies driven by a toxic mixture of religious self-righteousness and unfettered capitalist greed have been on the rise for decades and Walker traces the roots back to the mid-19th Century doctrine of Manifest Destiny.