Ucsusa:憂思科學家聯盟是一個非盈利性質的非政府組織，由全球10萬多名科學家組成;主要目的是提出一些報告和忠告，避免科學技術遭到濫用。該組織經常對美國政府的政策提出批評，並曝光一些鮮為人知的內幕。

憂思科學家聯盟全名為(The Union of Concerned Scientists，UCS)成立於1969年，該組織最初由美國麻省理工學院的教授們倡議組建，主要目的是提出一些報告和忠告，避免科學技術遭到濫用。該組織經常對美國政府的政策提出批評，並曝光一些鮮為人知的內幕。

下面是有關於該組織的英文介紹:

The Union of Concerned Scientists is the leading science-based nonprofit working for a healthy environment and a safer world. UCS combines independent scientific research and citizen action to develop innovative, practical solutions and to secure responsible changes in government policy, corporate practices, and consumer choices.

What began as a collaboration between students and faculty members at the Massachusetts Institute of Technology in 1969 is now an alliance of more than 400,000 citizens and scientists. UCS members are people from all walks of life: parents and businesspeople, biologists and physicists, teachers and students. Our achievements over the decades show that thoughtful action based on the best available science can help safeguard our future and the future of our planet.