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Post readers on nuclear nonproliferation.

Erik's Q&A with readers is at 12 p.m. ET on Monday, July 7. Submit your questions.

America's understanding of race and ethnicity is still woefully simplistic.

Critics are wrong to argue that a trans rights case was brought to the Supreme Court prematurely.

How a former lighthouse keeper thinks about the job.

My local pharmacy's products are now encased in glass, and the whole thing makes me very nervous.

Once in office, politicians have little motivation to obey the will of their constituents.

The Israeli prime minister has shown admirable military resolve. Political courage must come next.

Can we start with some common sense?

As China rises, the Trump administration should be strengthening, not fraying, ties with Japan.