The Atlanta Journal-Constitution

Race escalates for latest class of nukes

Build-ups by Russia, China, U.S. threaten Cold War-era spiral.

- William J. Broad and David E. Sanger

The United States, Russia and China are aggressive­ly pursuing a new generation of smaller, less destructiv­e nuclear weapons. The buildups threaten to revive a Cold War-era arms race and unsettle the balance of destructiv­e force among nations that has kept the nuclear peace for more than a half-century.

It is, in large measure, an old dynamic playing out in new form as an economical­ly declining Russia, a rising China and an uncertain United States resume their one-upmanship.

U.S. officials largely blame Russian President Vladimir Putin, saying his intransige­nce has stymied efforts to build on a 2010 arms control treaty and further shrink the arsenals of the two largest nuclear powers. Some blame the Chinese, who are looking for a technologi­cal edge to keep the United States at bay. And some blame the United States itself for speeding ahead with a nuclear “modernizat­ion” that, in the name of improving safety and reliabilit­y, risks throwing fuel on the fire.

President Barack Obama acknowledg­ed that danger at the end of the Nuclear Security Summit meeting in Washington early this month. He warned of the potential for “ramping up new and more deadly and more effective systems that end up leading to a whole new escalation of the arms race.”

For a president who came to office more than seven years ago talking about eventually ridding the world of nuclear weapons, it was an admission that a U.S. policy intended to reduce the centrality of atomic arms might contribute to a second nuclear age.

One of the few veterans of the Cold War in his administra­tion, James R. Clapper, director of national intelligen­ce, told the Senate Armed Services Committee during his annual global threat assessment, “We could be into another Cold Warlike spiral.”

Yet it is different from Clapper’s earlier years, when he was an Air Force intelligen­ce officer weighing the risks of nuclear strikes that could level cities with weapons measured by the megaton.

Adversarie­s look at what the United States expects to spend on the nuclear revitaliza­tion program — estimated at up to $1 trillion over three decades — and use it to lobby for their own sophistica­ted weaponry.

Moscow is fielding big missiles topped by miniaturiz­ed warheads, and experts fear that it may violate the global test ban as it develops new weapons. According to Russian news reports, the Russian navy is developing an undersea drone meant to loft a cloud of radioactiv­e contaminat­ion from an underwater explosion that would make target cities uninhabita­ble.

The Chinese military, under the tighter control of President Xi Jinping, is flight-testing a novel warhead called a “hypersonic glide vehicle.” It flies into space on a traditiona­l long-range missile but then maneuvers through the atmosphere, twisting and careening at more than a mile a second. That can render missile defenses all but useless.

The Obama administra­tion is hardly in a position to complain. It is flight-testing its own hypersonic weapon, but an experiment in 2014 ended in a spectacula­r fireball. Flight tests are set to resume next year. As part of the modernizat­ion process, it is also planning five classes of improved nuclear arms and associated delivery vehicles that, as a family, are shifting the U.S. arsenal in the direction of small, stealthy and precise.

“We are witnessing the opening salvos of an arms race,” James M. Acton, a senior analyst at the Carnegie Endowment for Internatio­nal Peace, last year told a congressio­nal commission that assesses China’s power.

One fear about the new weapons is that they could undercut the grim logic of “mutual assured destructio­n,” the Cold War doctrine that any attack would result in massive retaliatio­n and ultimately the annihilati­on of all combatants. While much debated and often mocked — in classics like the movie “Dr. Strangelov­e” — MAD, as it was known, worked. Now, the concern is that the precision and less-destructiv­e nature of these new weapons raises the temptation to use them.

A key question that Obama addressed is whether America’s planned upgrades are helping drive this competitio­n. Or are Russia and China simply using the U.S. push as an excuse to perfect weapons they would build anyway?

Moscow and Beijing, analysts say, are testing space weapons that could knock out U.S. military satellites at the beginning of a nuclear war. In response, Washington is launching space observatio­n satellites meant to deter and help defeat such attacks.

Obama, speaking at the summit meeting’s closing news conference, acknowledg­ed the tension stirred by the refurbishm­ent of the nation’s aging nuclear arsenal. He noted, for example, that communicat­ion links between the weapons and their guardians needed better protection­s against cyberattac­k. But when asked if warhead miniaturiz­ation and similar improvemen­ts could undermine his record of progress on arms control, he replied: “It’s a legitimate question. And I am concerned.”

William J. Perry, defense secretary under President Bill Clinton and one of the most influentia­l nuclear experts in the Democratic Party, said he worried that Moscow would soon withdraw from the Comprehens­ive Test Ban Treaty of 1996 and begin perfecting new warheads in undergroun­d detonation­s. (The United States has abided by the treaty, but the Senate has never ratified it.)

For two decades, the main nuclear powers have observed a shaky global ban on testing, a central pillar of nuclear arms control.

“I’m confident they’re working on a new bomb,” Perry said in an interview, referring to Russian nuclear arms designers. “And I’m confident they’re asking for testing.”

“It’s up to Putin,” he added.

Advocates of the U.S. nuclear modernizat­ion program call it a reasonable response to Putin’s aggression, especially his 2014 invasion of Crimea.

Military experts argue that miniaturiz­ed weapons will help deter an expanding range of potential attackers. “The United States needs discrimina­te nuclear options at all rungs of the nuclear escalation ladder,” said a report last year from the Center for Strategic and Internatio­nal Studies, a research group in Washington.

In February, the White House backed developmen­t of an advanced cruise missile. Dropped from a bomber, the flying weapon is to hug the ground for long distances and zip through enemy air defenses to smash targets.

In describing the atomic plans, the Pentagon explicitly calls the cruise missile and related nuclear arms essential for “countering Russian aggression” in Eastern Europe.

The administra­tion is also developing a hypersonic warhead that would zoom ahead of Beijing’s rush to perfect its own. The U.S. version would be non-nuclear: the goal is a weapon so fast and precise that it relies on the raw force of impact to destroy a fixed target, such as a missile silo.

While that fulfills the president’s commitment to rely less on atomic weapons, it may prompt adversarie­s who cannot match the technology to depend more on nuclear arms.

Perry, the former defense secretary, argued that the diminished nuclear arms and the non-nuclear weapons that Obama is developing could make the unthinkabl­e more likely.

“They make the weapons seem more usable,” he said, “even if there’s no credible plan for how you control escalation.”

Mark Gubrud, a nuclear weapons expert at the University of North Carolina, has lobbied for the negotiatio­n of a global flight ban on the testing of hypersonic arms. If work continues, he wrote recently, the maneuverab­le warheads are likely to become a global reality in the next decade.

“The world has failed to put the nuclear genie back in the bottle,” Gubrud said. “And new genies are now getting loose.”

 ?? DINO VOURNAS / SANDIA NATIONAL LABORATORI­ES ?? Lee Druxman, Bryn Miyahara and Andrew Van Blarigan, weapons experts, examine warhead models for the advance cruise missile. The U.S., Russia and China are pursuing a new generation of nuclear weapons.
DINO VOURNAS / SANDIA NATIONAL LABORATORI­ES Lee Druxman, Bryn Miyahara and Andrew Van Blarigan, weapons experts, examine warhead models for the advance cruise missile. The U.S., Russia and China are pursuing a new generation of nuclear weapons.

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