And why no one should ever run a prevent defense.

NBC's move is clearly a prevent defense against the broadcasting of worse language.

But by then, the Devils had gone into their prevent defense.

Kennedy with four minutes left, went into its prevent defense and allowed Lehman to drive down the field for a late touchdown.

Sometimes Cover 4 is used as a "prevent defense".

Cushions can range from a yard or two, to forty yards in a "prevent defense" situation.

What about the prevent defense, which did not choke off the Jets' final drive?

It's like playing prevent defense in football; it's not a good thing to do.

I don't know what it was, prevent offense, prevent defense.

"I called in sick," he said, as the Germans went into their prevent defense.