The unit prevents terrorists and other criminals from exploiting the nation's immigration system through fraud.

To prevent terrorists and other criminals from exploiting the nation's immigration system.

And he had the means to prevent Benjamin from exploiting a slight weakness at d5.

But conservation also has its costs, and these are usually borne by local people prevented from exploiting the resources around them in other ways.

The proposal is designed, Administration officials said, to prevent foreign companies from exploiting discoveries made at national laboratories and agencies.

This prevents other people from exploiting your invention in different ways.

And it's why we passed reform that finally prevents the health insurance industry from exploiting patients.

This is the case, most notably, in territorial animals: some individuals actively prevent others from exploiting a given resource, usually food or space.

Being timid prevents us from examining and exploiting our lot as men.

But Washington's trade embargo would now prevent the company from exploiting the field.