World threats

The Greatest Threat to America

U.S. decision-makers are confronted with myriad complex issues, including the Islamic State group and "lone-wolf" terrorists, China, cyber attacks from unknown hackers, al-Qaida, cyber attacks from known hackers,Iran, domestic budget cuts, North Korea, climate change, drug cartels straddling its borders, and Russia's continued ability to reduce the North American continent to a radioactive crisp.

The job of commander-in-chief has perhaps never been more difficult, and public disagreement among the president's top advisers gives the appearance to those outside the White House Situation Room that top U.S. national security infrastructure doesn't know where to start.