On the defense side, current technologies are still unable to withstand large-scale attacks.

从攻击防范的角度来说，现有的技术仍然不足以抵御大规模的攻击。

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Since then it has launched numerous small-scale attacks against Yemeni security forces and has struck in Saudi Arabia too.

自那时起，他们向也门安全力量发起了无数次小型袭击，他们还袭击过沙特阿拉伯。

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This session reviews this toolkit and discusses how service providers can use the techniques to effectively respond to large-scale attacks.

本课程对该工具箱进行了总结，同时还将讨论服务提供商如何才能使用这些技术来有效响应大规模的攻击。

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Mr Hashemi said only members of Iraq's security apparatus were capable of co-ordinating such large-scale attacks.

BBC: Baghdad blasts: Hashemi accuses government over attacks

It abandoned small-scale attacks in favor of headline-grabbing blasts after it joined with al Qaeda.

CNN: Rescuers search for bomb survivors

Meanwhile, al Qaeda's core leadership, he said, was probably unable to carry out large-scale attacks in the West.

WSJ: Homegrown Terror Threat Appears to Be Rising