The FBI and Department of Homeland Security released the warning to law-enforcement agencies late last night.

FBI（联邦调查局）与国土安全部于昨晚向各执法机关发布了警告。

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We need to restore respect for the law enforcement agencies.

我们需要重建对于执法机关的尊重。

《柯林斯英汉双解大词典》

For decades, researchers and law enforcement agencies have tried to build a machine that will do the same thing.

几十年来，研究人员和执法机构一直试图制造出一种能做同样事情的机器。

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That, he said, would help law-enforcement agencies across the country communicate with each other.

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That delay led to questions at Thursday's news briefing about communications among various law-enforcement agencies.

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Finally, "The Bourne Legacy" serves up a no-holds-barred critique of our law-enforcement agencies for failing to cooperate.

WSJ: Joe Queenan on Big Government and The Bourne Legacy | Moving Targets