It will be a monumental challenge. That's why we want as many partners as possible to address this.

Terrorism is a global challenge demanding a global answer.

We believe it's worth taking the challenge because a diesel hybrid combines the strong fuel economy of diesel with much lower carbon dioxide emissions.

The U.S. can't be alone to face the challenge of terrorism, poverty, development, instability in the world -- we need to be together,

These standards will be a challenge. It won't be easy for all manufacturers. But we're committed to being part of the solution.

The Mid Ohio Athletic Conference teams will have some challenge facing that group. We are a young team but give credit to Sophie. We knew we would have our hands full at the plate.