Only in Nigeria, among predominately Muslim countries surveyed, does a plurality express positive views of al Qaeda as well as its leader bin Laden.

In the case of a federal government shutdown, the public splits — and sharply so along partisan lines — over whether President Obama or Republicans in Congress are to blame.

The sweeping changes in family structure that have occurred roughly over the past 50 years have split the public into three roughly equal groups: Accepters, Rejecters and Skeptics.

As of March 2010, 11.2 million unauthorized immigrants were living in the United States, virtually unchanged from a year earlier.

According to projections, Muslims will account for 1.7% of the U.S. population in 2030, up from 0.8% in 2010.

New projections show the global Muslim population growing about 35% by 2030, reaching 2.2 billion.