Censorship is on the rise globally, say artists and art professionals: two groups that carry the unofficial but historic burden of speaking truth to power and offering political critique on behalf ...

The Ashington Group, as they called themselves, stuck to the philosophy "paint what you know," and the group became a sensation, capturing a unique look at life in coal mines and coal towns.

George McCaa, U.S. Bureau of Mines Never mind the gas—it was automation that got them in the end. Throughout much of the 20th century, chirping canaries were staples of the coal mining industry.