For many veterans who served in combat, their experiences strengthened them personally but made the transition to civilian life difficult.
As marriage rates have declined, the share of U.S. adults who have ever lived with an unmarried partner has risen.
Americans continue to see widespread discrimination against groups in the U.S., including Muslims, gays and lesbians, Hispanics, women, Jews and blacks.
Americans who personally know someone in a different religious group are more likely to feel positively about members of that group.
Worldwide, most of the countries that allow gay marriage are in Western Europe. In the Americas, five countries have legalized gay marriage.