Former California governor—and Bulletin executive chair—Jerry Brown spoke in Congress against the Trump administration's decision to revoke California's ability to set stricter vehicle emissions standards than those set by the federal government. Here are some highlights from Brown's testimony.

What you ought read, today, before you go to vote for Hillary Clinton, Donald Trump, or someone else to be president of the United States

In Europe, the initial reaction by thinkers and governments to the decision by President Donald Trump to walk away from the INF Treaty did not fully sync with the initial deploring response from many policy pundits in Washington.

Assuming that the president can get the approval and the funding, what are the merits of Trump's proposal to create a new branch of the military, from scratch?

Making a bold-faced entry in the list titled "Why Elections Matter," Congress has approved President Trump's nominee to be administrator of the Environmental Protection Agency, Scott Pruitt. 

The Olympic Truce offers a respite from the war of words between Kim Jong-un and Donald Trump.

A group of congressional Democrats introduced bills in the House and Senate this week that would prohibit the Trump administration from following through on the low-yield submarine-launched nuke.

Sanctioning one of the world’s largest financial messaging systems because of its relationship with Iran sounds appealing to the Trump Administration. But could they really do it?

While beliefs about national sovereignty and international law matter, when it comes to arms control treaties, ideological considerations rarely trump pork-barrel politics. Would a senator from a state dependent on the nuclear weapons complex oppose an arms control treaty not on the basis of ideology, but because the treaty would mean the loss of jobs or funding in their home state? Absolutely.

In this interview, Jenkins talks about her work on arms control and nuclear security, discusses differences between the Obama and Trump administrations, and highlights the scarcity of women and people of color in national security.

The Bulletin called some of its regular contributors and an observer from Finland to hear what they think the Putin and Trump’s shocking summit means for nuclear stability.

Meet the young Native American climate activist and her mother, who together are trying to protect the iconic wilderness area that the Trump Administration opened to oil drilling.

For the latest Say WHAT? video, the Bulletin turns to non-proliferation expert Alexandra Bell to explain the dangerous consequences of the Trump administration's inconsistent nuclear foreign policy.

Media pomp and video symbolism cannot substitute for arms control substance. The high-level goals listed in the joint Singapore statement by President Trump and Chairman Kim are extremely vague, but concrete steps are required, if the nuclear risk that North Korea poses to the United States and the rest of the world is to be reduced. The vagueness of the joint statement creates a distinct possibility that it will quickly evaporate, with regrettable—and possibly catastrophic—results for the region and the world.

Historian Bruce Cumings spoke to the Bulletin about misperceptions of North Korea, its mastery of game theory and economic potential, the curious triumph of Trump’s foreign policy ignorance, and who exactly deserves a Nobel Peace Prize.

The Joint Comprehensive Plan of Action (JCPOA) is at risk of failure, potentially turning Iran into the next North Korea. Reports suggest that both the Trump administration and hardliners in Iran are ready to walk away from the agreement. Both sides accuse the other of violations, and the Trump administration is apparently intent on finding a reason not to recertify the agreement, due in a little under 90 days. And yet, the JCPOA remains the best way to ensure that Iran does not acquire nuclear weapons, at least in the next decade. In light of this, European leadership should urgently pursue three policy options—including the opening of a European financial channel with Iran—to counter the opposition to the agreement by the Trump administration and Iranian hardliners.

After recently crossing the Atlantic Ocean to spend a year abroad in Paris, I decided to visit the one museum that commemorates a human achievement that trumps Notre Dame, the Louvre, and Eiffel Tower combined in terms of its impact on quality of life--sewage systems. Paris is one of the few cities that celebrates its sewer with a museum. Hidden and generally taken for granted, underground sewers allow large megacities to grow and flourish.

Activists and academics want the organizers of a privacy conference at Berkeley to drop Palantir Technologies as a sponsor, saying the company and its tracking software are complicit in executing the Trump administration's harsh immigration policies.

By not just refusing to endorse the new UN treaty on the Prohibition of Nuclear Weapons but also to even participate in the negotiations that led up to its adoption, the Trump administration has undermined the United States’ moral standing in the world and jeopardized its national security by doing nothing to diminish the prospects of a nuclear war.

North Korean leader Kim Jong Un is in Russia to meet with President Vladimir Putin. After failing to reach an agreement on North Korean denuclearization and sanctions relief with US President Donald Trump, Kim may find in Putin a powerful ally who won't push too hard against Kim's nuclear weapons program.