Fifty years ago this month, Harper Lee published her American classic To Kill a Mockingbird. Set in the Deep South in the 1930s, the poignant story of racial injustice remains timeless. Its influence on my decision to take up civil rights law was profound.

This report describes how right-wing nativists are targeting the mainstream environmental movement with advertisements, websites and even a newly formed "progressive" organization that purports to represent liberals who believe immigration must be radically curtailed to preserve the environment.