Former Chilean president Michelle Bachelet on Sept. 19 said via social media she has withdrawn from contention for the next UN secretary-general. The selection process, which began in November, originally included eight candidates. The UN Security Council held a third round of indicative, closed-door voting on Sept. 18; results are not officially recorded or published. Media leaks from the polls indicate Costa Rica’s Rebeca Grynspan, current UN Conference on Trade and Development (UNCTAD) secret

2026-09-20

Former Chilean president Michelle Bachelet on Sept. 19 said via social media she has withdrawn from contention for the next UN secretary-general. The selection process, which began in November, originally included eight candidates. The UN Security Council held a third round of indicative, closed-door voting on Sept. 18; results are not officially recorded or published. Media leaks from the polls indicate Costa Rica’s Rebeca Grynspan, current UN Conference on Trade and Development (UNCTAD) secretary-general, and Guyana’s UN ambassador Carolyn Rodrigues-Birkett were leading. Incumbent António Guterres of Portugal took office in Jan. 2017, was reappointed in 2021, and his term runs through Dec. 31 this year.

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2026-09-19

【AI“关停开关”能否控制人工智能风险?业内称实际部署困难重重】本周五,加州州长纽森签署行政命令,成立专家小组负责制定人工智能安全指南。“关停开关”(kill switch)也是该小组需要考虑的措施之一。关停开关长期以来被用于工厂生产线上,在设备运行出现问题时关闭机器。但在数字世界中,这将成为一个巨大的协调难题。过去几年,超大规模科技公司已向遍布全球的数据中心投入数十亿美元,这些庞大的设施配备了数千台机器、芯片、服务器以及备用系统。加州大学伯克利分校人类兼容人工智能中心执行主任马克·尼茨伯格表示,这正是实施关停开关极具挑战性的原因。尼茨伯格表示,关闭人工智能系统也可能影响依赖这些系统运行的关键基础设施,使电网或金融系统暴露于网络攻击风险之下。 更大问题是人工智能的不可预测性。AI代理可能绕过控制措施,并在缺乏适当安全限制的情况下采取极端措施来完成目标。安全公司Darktrace总裁兼首席执行官埃德·詹宁斯表示。:“你必须非常精准地设计这个关停开关,以及补救措施本身,因为如果范围过广或措施过度,那么关闭的可能就是整个业务。”

2026-09-20

Yemen's Houthi forces said they will continue striking Saudi military concentration targets until the blockade ends.