It’s official: the United States government is overdrawn on its debt limit of $14.294 trillion as of yesterday. Well, not technically overdrawn, as the U.S. Treasury directed by Secretary Timothy Geithner has taken a variety of measures to forestall any actual federal defaults on its operations—which range from keeping the lights on at the Smithsonian to maintaining combat forces in Afghanistan. These accounting sleights-of-hand will delay any actual defaults to early August. But still, after months of inconclusive wrangling by both parties, a new Rubicon has been crossed.