Does Trump's nuclear testing raise the stakes - or are we already in an arms race?

The article discusses the potential implications of the United States resuming nuclear weapons testing, as suggested by some experts. According to the report, such a move would represent a significant shift in policy and could reignite a nuclear arms race globally. Experts interviewed for the article argue that a US return to nuclear testing would likely prompt other nuclear-armed nations, such as Russia and China, to respond in kind, potentially leading to a renewed escalation of nuclear tensions. This could undermine decades of efforts to limit the spread and development of nuclear weapons worldwide. The article notes that the US has not conducted a nuclear test since 1992, and that a resumption of such testing could have far-reaching diplomatic and security consequences. However, the piece also suggests that some argue the world is already in a de facto arms race, even without active nuclear testing by the US. Overall, the article presents a balanced perspective on the potential risks and implications of a US return to nuclear weapons testing, highlighting the concerns of experts in the field.