Google is in more danger than ever of being broken up

After half a decade fighting to keep its empire together, Google’s defenses are wearing thin.

The company is facing a two-front war that could fundamentally reshape its business, and, the US Department of Justice argues, open new opportunities for its competitors. Last year a federal judge deemed Google an unlawful monopolist in the online search market, and this past week, a different judge declared it had monopolized the ad tech market, too. On Monday, it will face a new stage in that first battle...