Experts estimate that surgical complications result in at least one million deaths a year. The W. H. O. says studies suggest that about half of these problems may be preventable.

专家估计每年至少有一百万人死于外科手术并发症，世界卫生组织说，调查研究认为这些问题大约有一半是可以避免的。

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Experts estimate that, among these emigres, are about 100 al-Qaeda agents ready at any moment to hit a Spanish or American target.

CENTERFORSECURITYPOLICY: It is a Global War on Terror