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Two weeks ago, Donald Trump tweeted that Barack Obama “had my ‘wires tapped’ in Trump Tower.” He has yet to produce evidence supporting the allegation, and last week, his press secretary, Sean Spicer, retreated from the claim by referring to “wiretapping” in air quotes. Because the mention of wiretapping in the tweet (in reality, just one of the mentions in a series of tweets) fell between quotation marks, he argued,

After the nation’s first black president, we now have a white president with the whitest and malest cabinet since Ronald Reagan’s. His administration immediately made it a priority to deport undocumented immigrants and to deny people from certain Muslim-majority nations entry into the United States, decisions that caused tremendous blowback. What President Trump doesn’t seem to have considered is that diversity doesn

This Valentine’s Day, as you bask in the beauty of your beloved, don’t just thank his or her genes and your good fortune; thank microbes. Research on the microbes that inhabit our bodies has progressed rapidly in recent years. Scientists think that these communities, most of which live in the gut, shape our health in myriad ways, affecting our vulnerability to allergic diseases like hay fever, how much weight we put

You’ve saved your money and amassed a surplus. You’ve read a few books on investing and gleaned the basics — the importance of diversification, of investing for the long term, and of buying and holding rather than trying to beat the market. But you also know that human-caused climate change will (if it hasn’t already) start eroding economic output. Extreme weather, droughts and crop failures could mean mass migration

If you’re a pregnant woman and have a backache or headache, or a fever, your options for over-the-counter treatment basically boil down to one medication: the pain reliever acetaminophen, better known as Tylenol. Doctors advise against using nonsteroidal anti-inflammatories, like ibuprofen and aspirin, during late pregnancy because they can compromise fetal circulation and have other adverse consequences. But evidenc