Physics tell us that two objects can't occupy the same space at the same time. But does that principle also apply to superpowers?
This Wednesday, North Korea will be the topic du jour for U.S. and Chinese officials as they meet to discuss how to curb the hostile nation's missile program. China's close ties with North Korea make it harder to rein in Pyongyang than it might otherwise be. But they also mean China may have more clout than the U.S. on a key international challenge. That’s one more sign of growing Chinese influence that has many international observers uneasy.
The director of Harvard's Belfer Center for Science and International Affairs, Graham Allison, joined Adam to discuss this dynamic, which he lays out in his new book "Destined for War: Can America and China Escape Thucydides's Trap?"
