More than half of Americans polled say they don't think President Obama's foreign policy is tough enough. The Pew Research Center for the People & the Press poll indicated 65 percent of Americans think the world is getting more dangerous and the Islamic State, formerly known as ISIS, is one of the greatest security issues (67 percent).

Fifty-four percent of those polled said they don't think Obama is tough enough on foreign policy and national security issues while 3 percent said he's too tough. Thirty-nine percent said the U.S. does too much to solve the world's problems while 31 percent said it does too little. Forty-eight percent said the United States is less important and powerful as a world leader than it was a decade ago.

Slightly more than half of respondents (53 percent) viewed growing tensions between Russia and its neighbors as a major threat and 52 percent cited rapidly spreading infections like Ebola. Nuclear programs in Iran and North Korea were viewed as major threats by 59 percent and 57 percent, respectively. China's emergence as a world power, climate change and the Israeli Palestinian conflict were named as major threats by 48 percent.

The poll of 1,501 adults was conducted Aug. 20-24 and had an error rate of 2.9 percentage points.