North Korea’s Alarmed Neighbors Consider Deploying Deadlier Weapons

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North Korea’s rapidly advancing nuclear program has prompted politicians in Japan and South Korea to push for the deployment of more powerful weapons, in what could lead to a regional arms race.

Some of the new capabilities under consideration in Tokyo and Seoul, Washington’s closest Asian allies, are politically contentious. Adopting them would break with decades of precedent and could require delicate diplomatic finessing. Other military options are already being rolled out or will be soon......

https://www.nytimes.com/2017/08/08/world/asia/north-korea-japan-missile-south.html