Mercury found in all fish in US streams
The week's 7 best political cartoons
The week's best political cartoons: A 1-minute video
London kicks out Uber, saying it is 'not fit and proper'
National Review asks why Jimmy Kimmel won't 'leave policy talk to health-care experts,' gets an earful
Stephen Colbert and Seth Meyers puzzle over how Republicans defend their last-ditch health-care bill