Hawks see tight sanctions as a way of causing North Korea's economic collapse.

That's why any effort to impose tight sanctions immediately may prove fruitless.

In response, the United States has threatened tighter sanctions or stronger measures.

Israel's defense minister said any decision was "very far off," as Russia renewed its aversion to tighter sanctions.

Support for Sanctions But some people hurt by the embargo still favor tighter sanctions.

Some American officials say a combination of tighter economic sanctions and a strong show of international resolve may still force the leaders to quit.

A7 France is seeking tighter economic sanctions against Haiti.

Keeping Iraq under tight sanctions, including forbidding the country to sell oil freely to raise money for arms, has been central to American policy.

He said tighter sanctions were having only mixed success.

How long does the Administration officials give tighter sanctions enforcement a chance to work?