Although many other introduced species have played a destructive role, so far these three have been far and away the most significant.

Hamilton there addressed the destructive role of a faction in breaking apart the republic.

Mr. Roberts accused the committee's Democrats of playing a destructive role in the budget process.

From fragile ecosystems to choking cities, oil and coal play profoundly destructive roles.

Volcanic activity has certainly played a significant and destructive role in our history, and will continue to do so in the future.

We do not want to play a destructive role.

Rape is the result of how destructive such roles can be, Mr. Lee said.

He charged Germany's enemy nations with protecting the Jews, proving "their destructive role among our people."

Once again, the Commission is playing a destructive role, which should lead us to consider the relationship between the European institutions in general.

I thank those who played a constructive rather than a destructive role.