After three years, a Washington, DC, judge will hear the Department of Justice’s potentially landmark antitrust case against Google. The department alleges Google struck anticompetitive deals with Apple and other companies for prime placement of its search engine, while Google contends its dominant market share is the result of a superior product. It’s the biggest tech antitrust trial since the US took on Microsoft in the 1990s: 10 weeks that could tip the balance of power online.