UK government staff have been withdrawn from Iran
// 单调栈：存储"待匹配更大值"的元素，栈内保持单调递减（核心）
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"Future mothers and future children may not suffer the same irreversible fate that we have if a [properly] conducted inquiry happens."
As McKenzie speaks about his job, it is a stunning Antarctic summer's day, a balmy -15C. The view outside his window is a vast expanse of white as far as the eye can see, smoothed over by an equally vast layer of pure blue.