which effectively is randomizing.

这实际上也是一种随机化
From the point of view of the terrorists,

从恐怖分子的角度来看
they're not going to know where the baggage checks are going on.

他们并不知道哪里在进行行李检查
That's worth doing.

这是一种可行的办法
It doesn't... It isn't going to perfectly eliminate, well unfortunately,

可惜这并不能完全消除恐怖袭击
it isn't probably going to perfectly eliminate all terrorist attacks,

这并不能完全杜绝恐怖袭击
but it does make it harder for the terrorists.

但至少提高了恐怖分子的风险
So randomization there,

这里面所体现的随机化
whether it's literally randomizing over who is checked,

不管是真的随机进行乘客检查
or whether it's "as it were" randomizing,

还是说假装的随机化
by concealing where in fact you have placed those machines,

即随机安放安检仪和空机器
can be very effective.

这些都是很有效的方法