About two-thirds of Americans have a positive view of the Department of Homeland Security.

The UN Climate Change Conference convened today in Warsaw with a call for governments to reach an agreement to cut greenhouse gas emissions. The talks begin against a public opinion backdrop in which fewer Americans see global climate change as a major threat than do people in most other regions.

A decade after the U.S. invasion of Iraq, 46% of Americans believe the U.S. achieved its goals there while 43% said it had not.

The share of Mexicans with a favorable view of the U.S. has risen 22 percentage points since passage of Arizona’s restrictive immigration law in 2010.

Surveyed shortly after the online health insurance exchanges launched, a plurality of Americans said they were not working well or at all.

More than eight-in-ten Tea Party Republicans say granting legal status to undocumented immigrants would reward illegal behavior.

More than 20 million tweets were posted on Twitter in a five day period covering the approach and aftermath of Hurricane Sandy in 2012.

President Obama called yesterday for action this year on immigration; about half of Americans said passage of major legislation this year was essential.

A new report raises "serious concerns" about the U.S. drone campaign in Pakistan. U.S. public opinion about the use of drones in general sharply differs from the widespread opposition to the missile strikes among other nations.

The IRS was rated less favorably than any of the other federal agencies tested in a new Pew Research survey; 51% had a negative opinion.