Among the 32 places surveyed, support for legal same-sex marriage is highest in Sweden, where 92% of adults favor it, and lowest in Nigeria, where only 2% back it.
Twenty years ago, Americans came together – bonded by sadness and patriotism – after the 9/11 terrorist attacks. But a review of public opinion in the two decades since finds that unity was fleeting. It also shows how support for the wars in Afghanistan and Iraq was strong initially but fell over time.