Mona Charen: The trouble with world opinion

Do we care what the world thinks of us? Should we? A new survey of global opinion is getting the usual respectful attention. The Pew Global Attitudes Project surveyed people in 57 countries and found that President Obama’s approval ratings have slipped a bit among Europeans, Latin Americans, and Asians — though he remains quite a bit more popular than George W. Bush was in his final year in office. (Obama is far better liked abroad than he is at home.)