Intelligence to prevent attacks is part of what experts call a "layered" security approach.

防止袭击的情报是专家所说的“分层”保安措施的一部分。

youdao

Questions have also been asked about why Pakistan's powerful intelligence agencies failed to prevent attacks.

人们仍然在询问，为什么巴基斯坦强大的情报机构未能阻止袭击？

youdao

In order to prevent attacks, minimize their impact and remove points of attack, first of all, you have to fully understand the attack methods in order to find the correct countermeasures.

为了防止攻击，最大限度地减少其影响和消除攻击点，首先，你必须充分了解攻击方法，以便找到正确的对策。

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The United States is also offering support to other countries in the area to help prevent other attacks.

VOA: special.2010.07.17

"We are going to have to continue to work with our partners to prevent future attacks.

VOA: standard.2009.04.13

And,as I said,it would be tough for any government,any country, to prevent these kinds of attacks."

VOA: standard.2009.12.11

The government wants to know what the risks are and how to prevent attacks.

FORBES: Cyberattacks -- Is North Korea Already At War With Us?

We will ensure sound intelligence and tough new border controls to prevent attacks.

BBC: NEWS | UK | UK Politics | David Davis speech in full

Mr Straw pledged an investigation into the allegations, saying the UK Government would act to prevent attacks on either the Muslim or Jewish communities.

BBC: Straw briefed on mosque attacks