Arnold said he was approached recently by a neighbor who told him he was embarrassed because he had not realized the depths of racism in the U.S.
Alaska NAACP members respond to Virginia clashes →
As Mr. Arnold pointed out, they gave more than $80 billion to some 16,000 American environmental activist groups between 2000 and 2012.
DRIESSEN: What's really behind anti-Keystone fanaticism? →