On its own, this would be a powerful deterrent to virtualization.

Prison sentences are viewed as one of the most powerful deterrents to the financial community.

Inmates themselves say the threat of additional jail time has become a powerful deterrent.

That way, the board can both prepare for future action and unleash a powerful deterrent.

That, they say, is a powerful deterrent to filing charges.

So here is a powerful deterrent against any large- scale attack.

A poison may be added as an even more powerful deterrent.

Wouldn't an openly displayed gun be a far more powerful deterrent?

The bonuses are a powerful deterrent to the entry of new airlines.

But that is already a powerful deterrent to a secret arms buildup.