Big Tech CEOs scrutinized by Congress on monopolies and bias

Washington • Four Big Tech CEOs — Facebook’s Mark Zuckerberg, Amazon’s Jeff Bezos, Sundar Pichai of Google and Tim Cook of Apple — are answering for their companies’ practices before Congress as a House panel caps its yearlong investigation of market dominance in the industry.The powerful executives are defending their companies as buttressing competition and offering essential services to consumers. The four CEOs are testifying remotely for a hearing Wednesday