US economic, military and political dominance is likely to decline over the next two decades, according to a new US intelligence report on global trends.
The National Intelligence Council (NIC) predicts China, India and Russia will increasingly challenge US influence.
It also says the dollar may no longer be the world's major currency, and food and water shortages will fuel conflict.
However, the report concedes that these outcomes are not inevitable and will depend on the actions of world leaders....