- Foreman mentions Kobe and the woman who accused him.
- "...that girl dropped the charges against Kobe. Doesn't mean that he should call her and see if she's free to get a sundae." [#109 DNR]
- House mentions Sharon and Gaza to Wilson
- Wilson: "So, any thoughts?"
House: "On what? Sharon's plan for Gaza?" [#116 Heavy]
- House mentions the Iraq War
- House: "Unless I've been named as the fourth part of the Axis of Evil, invaded and occupied, this is still not a democracy." [#115 Mob Rules]
- House mentions the U.S. not signing the Kyoto Treaty.
- House: "Yeah, all 'cause those bastards didn't ratify Kyoto."
- August 2005's Hurricane Katrina
- a major focus of an episode. [#222]