<em>The Atlantic</em> Daily: Where They're Coming From

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Updated at 8:29 p.m.

North Korea News: Following conversations with President Trump and North Korean leader Kim Jong Un, South Korea’s national security adviser announced three surprising developments: First, that Kim had pledged to stop conducting missile tests and commit to denuclearization; second, that Kim had extended an invitation to Trump to meet with him; and finally, that Trump had agreed he would visit Kim by May. Uri Friedman explains what could come of that visit.

British authorities confirmed this week that Sergei Skripal, a former Russian intelligence agent who Russian prosecutors say later that caused him and his daughter Yulia to collapse. They’re now in critical condition. A police officer who responded was also hospitalized after coming in contact with the nerve agent.