“I’m not scared, you’re scared!” is the repeated line in a children’s story we recently read to the kids at the Unitarian Universalist version of Sunday school I attend with my children. In that story, a scared bear and a brave rabbit, who (naturally!) are best friends, go on a hike together. Rabbit has to cajole and encourage Bear through every imaginable obstacle, but in the end (of course!) it’s Rabbit who gets stuck at the crucial moment and has to call on Bear for help. Bear (no surprise) sets aside his fears to rescue his friend and (tada!) finds new depths of bravery and adventurousness in the process.

After we read the story, the kids worked together to build paths from blocks and Legos through the imagined obstacles in the story—a bridge over a rushing river, a path through a dark forest, a staircase up a steep mountain. It was one of our most engaging classes in recent memory, while the kids kept saying, “I’m not scared, you’re scared!” and laughing while they played. As we stacked blocks and fit Legos together, we adults were supposed to help the kids identify things they were afraid of and how they could confront those fears. For me, it was just one thing too many. I blanked on that part of the assignment.

In fact, I was a little relieved to have done so. Of course, I have fears myself, but I’m not afraid of spiders or heights or small spaces like so many people. I am afraid of nuclear war—not something I would want to confess to a bunch of kids sitting on carpet squares.

What should I have said? “Okay, kids, I know some of you are afraid of monsters or werewolves or the Wither Storm in Minecraft, but I’ll tell you something truly terrifying: the Bulletin of the Atomic Scientists just moved its Doomsday Clock to 85 seconds to ‘nuclear midnight,’ four seconds closer than ever before.” I would have gotten blank stares and quick subject changes and yet, once I had started, I would undoubtedly have kept on sharing the telltale heart of my own bogeyman. “When I was a kid in the 1980s,” I would have said, “we were at three minutes to metaphorical midnight and my dad, who was an activist, wouldn’t even let me go to the movies. Now, they have pushed it even closer—closer than ever before. With nine countries armed with nuclear weapons, we’ve tick-tocked ourselves to 85 seconds to midnight. Yep, 85 seconds, by the way, is probably less time than it takes you to spell your full name or tie your shoes.”

Trump’s famous wrecking ball that blasted the East Wing and the Kennedy Center is now aimed at the nuclear treaty architecture built up over the decades.

Of course, I kept those long-winded, fact-filled fears to myself at that Sunday school. But I’ll tell you all that, in truth, it’s far worse than even what I thought that day. The Bulletin‘s scientists who made the announcement about those 85 seconds to midnight were contending with more than nuclear dangers (which have, by the way, never been more imminent). Those scientists were also responding to the speeding up of catastrophic climate change and the threats posed by artificial intelligence (AI). In the words of Daniel Holz on the Bulletin‘s Science and Security Board, “The dangerous trends in nuclear risk, climate change, disruptive technologies like AI, and biosecurity are accompanied by another frightening development: the rise of nationalistic autocracies in countries around the world. Our greatest challenges require international trust and cooperation, and a world splintering into ‘us versus them’ will leave all of humanity more vulnerable.”

Yes, all of humanity is vulnerable indeed—like my young friends building Lego bridges across felt rivers for a Bear and a Rabbit birthed in late night comedian Seth Meyers’s imagination.

The End of Arms Control as We Knew It

And as if all of that weren’t terrifying enough, Thursday, February 5 marked the end of arms control as we’ve known it. The last treaty controlling nuclear weapons between my country and Russia expired without a replacement on that day, leaving us all vulnerable to the whims of Donald Trump and Vladimir Putin. There are reports of a handshake deal between the two countries to extend the principles of the treaty, but haphazard and informal agreements are simply not “arms control” (at least as we once knew it).

The Strategic Arms Reduction Treaty, known as New START, was signed by US President Barack Obama and Russian President Dmitry Medvedev in 2010 and set out a schedule for verifiable and commensurate nuclear arsenal reductions. It was renewed under Republican and Democratic administrations, but it is very “on brand” for strongmen Donald Trump and Vladimir Putin to deride international treaties of any sort.

Unfortunately, the sort of muscular bombast they’re known for isn’t what’s kept the world reasonably safe from nuclear war for the last eight decades, since the atomic bombings of the Japanese cities of Hiroshima and Nagasaki in 1945. Rather, it was a tight web of treaties—the Comprehensive Test Ban Treaty, START I and II, New START, the Anti-Ballistic Missile Treaty, and the Nuclear Nonproliferation Treaty—that kept the whole world safe (or as safe as we could be with ever more nuclear-armed powers proliferating across the planet). That alphabet soup of promises, schedules, and commensurate acts of disarmament, as fragile and incremental as it was, resulted in the dismantlement of 80% of the US and Russian arsenals over the decades.

Now, we are all being dragged in the other direction.

Trump’s famous wrecking ball that blasted the East Wing and the Kennedy Center is now aimed at the nuclear treaty architecture built up over the decades. In its place, he proposes to construct a Golden Dome missile defense system to protect the United States from incoming nuclear weapons. And that fool’s errand could not only lead us toward nuclear war, but have a price tag in the trillions of dollars.

With his administration’s gold-plated, AI-enhanced sense of aggression, President Trump is now taking aim at NATO, an alliance the United States helped to build after World War II. His administration is abrogating agreements, leveling tariffs, and threatening to annex Greenland. Europe is getting the message that the United States is no longer a reliable ally, stoking concerns that yet more countries will move to create nuclear arsenals. Meanwhile, Vladimir Putin’s Russia is investing more money in nuclear weapons and the Russian strongman has actually threatened to use such weapons, while already at war in a part of Europe.

Of course, Russia and the United States are anything but the only nuclear states these days. China, France, the United Kingdom, Israel, India, Pakistan, and North Korea round out the rogue’s gallery of—to come up with a word of my own—Obliterables.

In 2024 alone, those nine nuclear-armed states spent more than $100 billion on such weaponry, an 11% increase over the year before, according to the Nobel Peace Prize-winning International Campaign to Abolish Nuclear Weapons (ICAN). For example, the Bulletin of the Atomic Scientists‘ Nuclear Notebook finds that China is rapidly and aggressively increasing its nuclear arsenal. Beijing, it points out, has “significantly expanded its ongoing nuclear modernization program by fielding more types and greater numbers of nuclear weapons than ever before.”

Throughout Asia and Europe, the leaders of all too many countries are openly discussing regional pacts and the need to develop their own nuclear weapons programs. They are reviving the moribund logic of proliferators—that only more nuclear weapons can protect us against nuclear weapons. And that is exactly the wrong conclusion to draw in this already endangered world of ours.

Another Treaty to the Rescue?

Instead of all this unilateralism and nuclear proliferation, nuclear and nuclear-adjacent nations should be signing on to the Treaty on the Prohibition of Nuclear Weapons. It’s clear and smart, and its goals are achievable. In essence, it prohibits countries from developing, testing, producing, stockpiling, transferring, or threatening to use (no less actually using) nuclear weapons. And if that seems remarkably comprehensive,........

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