Like many people who spend too much time on Twitter, I watched with indignation Saturday morning as stories began appearing about a confrontation near the Lincoln Memorial between students from Covington Catholic High School and American Indians from the Indigenous Peoples March. The story felt personal to me; I live a few miles from the high school, and my son attends a nearby all-boys Catholic high school. I texted him right away, ready with a lesson on what the students had done wrong.

“They were menacing a man much older than them,” I told him, “and chanting ‘Build the wall!’ And this smirking kid blocked his path and wouldn’t let him leave.” The short video, the subject of at least two-thirds of my Twitter feed on Saturday, made me cringe, and the smirking kid in particular got to me: His smugness, radiating from under that red MAGA hat, was everything I wanted my teenagers not to be.

In a short, viral video shared widely since Friday, Catholic high-school students visiting Washington, D.C., from Kentucky for the March for Life appeared to confront, and mock, American Indians who had participated in the Indigenous Peoples March, taking place the same day.

By Saturday, the video had been condensed into a single image: One of the students, wearing a “Make American Great Again” hat, smiles before an Omaha tribal elder, a confrontation viewers took as an act of aggression by a group of white youths against an indigenous community—and by extension, people of color more broadly. Online, reaction was swift and certain, with legislators, news outlets, and ordinary people denouncing the students and their actions as brazenly racist.

Mort Felix liked to say that his name, when read as two Latin words, meant “happy death.” When he was sick with the flu, he used to jokingly remind his wife, Susan, that he wanted Beethoven’s “Ode to Joy” played at his deathbed. But when his life’s end arrived at the age of 77, he lay in his study in his Berkeley, California, home, his body besieged by cancer and his consciousness cradled in morphine, uninterested in music and refusing food as he dwindled away over three weeks in 2012. “Enough,” he told Susan. “Thank you, and I love you, and enough.” When she came downstairs the next morning, she found Felix dead.

During those three weeks, Felix had talked. He was a clinical psychologist who had also spent a lifetime writing poetry, and though his end-of-life speech often didn’t make sense, it seemed to draw from his attention to language. “There’s so much so in sorrow,” he said at one point. “Let me down from here,” he said at another. “I’ve lost my modality.” To the surprise of his family members, the lifelong atheist also began hallucinating angels and complaining about the crowded room—even though no one was there.

On January 20, 2017, Donald Trump stood on the steps of the Capitol, raised his right hand, and solemnly swore to faithfully execute the office of president of the United States and, to the best of his ability, to preserve, protect, and defend the Constitution of the United States. He has not kept that promise.

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Instead, he has mounted a concerted challenge to the separation of powers, to the rule of law, and to the civil liberties enshrined in our founding documents. He has purposefully inflamed America’s divisions. He has set himself against the American idea, the principle that all of us—of every race, gender, and creed—are created equal.

I am familiar with the ambiguities of video evidence—for example, through this piece I wrote from Israel more than 15 years ago, “Who Shot Mohammed al-Dura,” about the battle over the meaning of an inflammatory video there;  or these two separate Twitter threads, first here then here, in the past few days from James Martin, a Jesuit priest and editor for America magazine, about the meanings of the multiple videos from the confrontation on the National Mall this past weekend.

I now believe that the “meaning” or “truth” of this recent encounter is likely to remain as contested as anything in the al-Dura case. The more additional evidence comes in, the more clearly it is taken to “prove” one interpretation of the case, or its opposite. “You must not have seen the full videos” is meant to be a conclusory statement, either way.

When Alexandria Ocasio-Cortez suggested this month that the United States should tax income over $10 million by 70 percent, it galvanized something unusual: a broad and substantive national conversation about the design and purpose of federal tax policy.

No, I’m just kidding. It kicked off a lot of screaming about socialism, especially on cable news.

From the cacophony of communist callouts, however, a subtler argument emerged. Entrepreneurs and center-right economists insisted that raising taxes dramatically on the rich would undo America’s ability to spark innovation and attract entrepreneurs who want to start companies and solve big problems.

In the abstract, their case is clear. “If income taxes are high enough, start-ups stop happening,” said Paul Graham, the founder of Y Combinator, the country’s preeminent start-up incubator.

Dr. Sherman Hershfield woke up one morning and was surprised to find himself behind the wheel of his car. Somewhere between his Beverly Hills apartment and his practice in the San Fernando Valley, the silver-haired physician had blacked out. Somehow he’d avoided a crash, but this wasn’t the first time. “I didn’t know what was going on,” he admitted.

Apart from his frequent blackouts, Hershfield was in fine health for a man in his 50s. He was tall and lean, ran six miles a day, and was a strict vegetarian. “I believe a physician should provide exemplary motivation to patients,” he once wrote. “I don’t smoke and have cut out all alcohol.” Hershfield specialized in physical medicine and rehabilitation, and for decades had helped patients with brain injuries learn to walk again and rebuild their lives. Even with his experience, Hershfield didn’t know what was wrong inside his own head.

“Woe to you, because you build tombs for the prophets, and it was your ancestors who killed them.” Jesus’s rebuke to the Pharisees descended upon me on a cold January morning in 2017, in West Potomac Park in Washington, D.C. On that Monday, the national holiday dedicated to the man at whose memorial I stood, the capital bustled in anticipation of a more pressing political event. That’s why I was at the park, pondering this granite stone of hope, carved out of a mountain of despair. The memorial to Martin Luther King Jr. cast its shadow over me, its presence just as conflicted as those tombs.

As sure as Jesus’s words proved prescient about the adoption of Christianity in the empire that killed him, so too the modern-day legend of King writes itself in real time. In the official story told to children, King’s assassination is the transformational tragedy in a victorious struggle to overcome.

The U.S. Navy recently asked Congress for $139 billion to update its fleet of nuclear-powered submarines. Unlike “conventional” submarines, which need to surface frequently, nuclear submarines can cruise below the sea at high speeds for decades without ever needing to refuel. Defense planners expect that the new submarines will run on one fueling for the entirety of deployment—up to a half century.

Read: What it felt like to test the first submarine nuclear reactor

The advantages of nuclear submarines over their conventional cousins raise a question about another component of the military arsenal: Why don’t airplanes run on nuclear power?

The reasons are many. Making a nuclear reactor flightworthy is difficult. Shielding it from spewing dangerous radiation into the bodies of its crew might be impossible. During the Cold War, when the threat of nuclear apocalypse led to surprisingly pragmatic plans, engineers proposed to solve the problem by hiring elderly Air Force crews to pilot the hypothetical nuclear planes, because they would die before radiation exposure gave them fatal cancers.

Dear Therapist,

For Christmas this year, my boyfriend surprised me with a ring. It’s sapphire and silver—beautiful. But it’s not an engagement ring. Without saying so outright, he made clear that it was just a ring. After dating for a few years, and living together for the past year and a half, I can’t help but be disappointed. To make matters worse, when I went to the store to get the ring resized, the clerk kept congratulating me and asking me all about my fiancé.

I wasn’t expecting to get engaged over the holidays—my boyfriend has also said he doesn’t want to propose on a holiday, or my birthday, or some other occasion so that he won’t “ruin it” if the marriage goes badly. We’ve talked about marriage and getting engaged, but he also says he thinks we still have some things to work on in our relationship. I’ve tried to advocate for myself and tell him that I have my own timeline and expectations, but that I’m willing to give him the time he needs.