Seventy-six of Americans are worried that the United States will become engaged in a major war in the next four years, according to a new NBC News National Security Poll.
Although Americans are concerned about a number of national security threats, 41 percent believe that North Korea currently poses the greatest immediate danger to the United States, emerging as a more urgent concern than ISIS (28 percent) or Russia (18 percent), according to the poll, which was conducted online from July 10 through July 14.