Beware, Google May Be Hacked

For those who may have used Google in the last 15 minutes, all of their search results are being returned labeled "This Site May Harm Your Computer". This blocks you from direct access through a query, and apparently there's no way around it. I wonder if it was an accident by a Google staffer, or a hacker? (I've confirmed this with others from various locations around the US, so it's not localized to my computer or region)

*/ It's back up fine.