september 1864

Sometime this week, you might walk outside in broad daylight, look up at the sky, and see a luminous orb as bright as a full moon. Only it wouldn’t be the moon. It would be something far more explosive: the dazzling aftermath of a cataclysm hundreds of light-years away.

You’d be seeing the light from a supernova—the final, powerful flash of a dying star.

Or … you might see the regular old sky. Supernovas are nearly impossible to predict. But astronomers have recently started discussing the rare possibility with a bit more enthusiasm than usual, thanks to some odd behavior elsewhere in the Milky Way. If the supernova did show up tomorrow, it would be the celestial event of the year, perhaps even the century, leaving a cosmic imprint in the sky for all to see.

Christopher Hitchens and I weren’t close friends—I was a lesser planet in his orbit. Every so often I felt the rhetorical lash of his published words on my back, and then I tried to make him feel mine, and you can guess who got the better of those exchanges. They usually had to do with Iraq. We both supported the war, but I supported it in an ambivalent, liberal way, while Christopher supported it in a heroic, revolutionary way. The more I saw of the war, the deeper my despair became. Christopher made it a point of honor never to call retreat.

I know of many friendships that ended in those years, including a few of mine. But something strange happened between Christopher and me. For every time he called me a split-the-difference bien-pensant, and for every time I called him a pseudo–Lord Byron, we seemed to become better friends. We would say rude things about each other in print, and then we’d exchange tentatively regretful emails without yielding an inch, and then we’d meet for a drink and the whole thing would go unmentioned, and somehow there was more warmth between us than before. Exchanging barbs was a way of bonding with Christopher.

On a sweltering July day, I follow Annise Dobson down an overgrown path into the heart of Seton Falls Park. It’s a splotch of unruly forest, surrounded by the clamoring streets and cramped rowhouses of the Bronx. Broken glass, food wrappers, and condoms litter the ground. But Dobson, bounding ahead in khaki hiking pants with her blond ponytail swinging, appears unfazed. As I quickly learn, neither trash nor oppressive humidity nor ecological catastrophe can dampen her ample enthusiasm.

At the bottom of the hill, Dobson veers off the trail and stops in a shady clearing. This seems like a promising spot. She kicks away the dead oak leaves and tosses a square frame made of PVC pipe onto the damp earth. Then she unscrews a milk jug. It holds a pale yellow slurry of mustard powder and water that’s completely benign—unless you’re a worm.

1. The Disappearance

At 12:42 a.m. on the quiet, moonlit night of March 8, 2014, a Boeing 777-200ER operated by Malaysia Airlines took off from Kuala Lumpur and turned toward Beijing, climbing to its assigned cruising altitude of 35,000 feet. The designator for Malaysia Airlines is MH. The flight number was 370. Fariq Hamid, the first officer, was flying the airplane. He was 27 years old. This was a training flight for him, the last one; he would soon be fully certified. His trainer was the pilot in command, a man named Zaharie Ahmad Shah, who at 53 was one of the most senior captains at Malaysia Airlines. In Malaysian style, he was known by his first name, Zaharie. He was married and had three adult children. He lived in a gated development. He owned two houses. In his first house he had installed an elaborate Microsoft flight simulator.

“You never want a serious crisis to go to waste,” Rahm Emanuel, the incoming White House chief of staff, said days after Barack Obama was elected in 2008. Emanuel’s point was that a moment of cataclysm meant a chance for big structural reforms that wouldn’t be possible in moments of calm.

But there are other ways to take advantage of a crisis, as the Trump administration is demonstrating right now. Even as the president’s impeachment trial moves forward, the White House is acting aggressively on a range of policy proposals that are politically, legally, or morally suspect, wagering—probably correctly—that the press and the people will mostly overlook them amid the drama in the Senate.

It isn’t, as has sometimes been claimed, that Trump wanted to be impeached, or that the impeachment is somehow a brilliant Machiavellian distraction he has orchestrated. The president has made clear that he wants the trial over as quickly as possible. But as long as it’s going on, the White House is using the crisis as best as it can.