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Tapping the wires is surprisingly simple.
窃取光纤信息极其简单
The data carried by the fibre-optic cable
只需要将光纤传递的信息
just needs to be diverted.
进行改道
A fibre-optic cable signal is a beam of light
光纤信号就是一束光
travelling down a cable made from glass.
这束光穿过了玻璃材质的线缆
Pulses of light represent
脉冲光束代表着
the pieces of information travelling across the internet,
穿梭于互联网中的信息
which is the e-mails, the web pages,
例如电子邮件 网页
everything that's going over the internet.
所有经过互联网的信息
Every 50 miles or so, that signal becomes sufficiently weak
每八十千米左右 这个信号就会变得极其弱
that it needs to be repeated,
因此它需要被加强
and this is the weak spot.
而这就是薄弱点
And it's very easy to insert an optical tap at that point.
在这一薄弱点安插拦截设备极其简单
And that's just what GCHQ did.
英国情报机构政府通信总部就这么做的
A device was placed into the beam of data
在数据流中安插一个设备
which created a mirror image of the millions of e-mails,
建立镜像 其中包括每秒钟经过光纤的
web searches and internet traffic
数以百万计的电子邮件
passing through the cables every second.
网页搜索和网络通讯信息
重点解释：
1.a beam of light 一束光
例句：A beam of light generated by a laser.
由激光器发出的一束光。
2.be made from ... 由 ... 制成
例句：Water can be made from oxygen and hydrogen.
水是由氧和氢组成。
3.go over 检查；重做
例句：Let's just go over these figures again.
我们再检查一下这些数字吧。
