Williams even got into the act on the defensive end, taking a charge from O.

WSJ: Lopez, Williams lead Nets past Mavericks 113-96

The debate over the Patriot Act comes as the president finds himself on the defensive about the handling of the war on terrorism.

NPR: Bush on Defensive over War on Terror

The act of an offensive lineman hitting a defensive lineman on every play produces a low level concussive hit.

FORBES: When Playing Football Leads to Death

He wants to show that he can act quickly in a crisis, show leadership, shake up the race, maybe put Obama on the defensive, try to show that he's above politics.

NPR: McCain Suspends Campaign; Obama Responds