North Korea claims it needs nuclear weapons to protect itself. The U.S. and other countries, however, argue that North Korea’s repressive and isolated regime can’t be trusted with such dangerous weapons. President Donald Trump has said that the U.S. is prepared to take military action if Kim Jong Un, North Korea’s leader, doesn’t stop testing nuclear weapons.
In September, North Korea stated that Trump’s comments were a “declaration of war.” Could a nuclear exchange between North Korea and the U.S. really happen, and if so, what’s at stake? Science World spoke with experts on the issue. Here are the facts on some of the most pressing scientific questions about North Korea and its nuclear program.