Top tech company CEOs were grilled for over 5 hours by US lawmakers in an anti-trust hearing to determine whether their massive power and influence was bad for competition and consumers. Facebook’s Mark Zuckerberg and Google-parent Alphabet’s Sundar Pichai faced a barrage of accusations that there platforms are biased against conservatives. Apple CEO Tim Cook faced the fewest questions. Amazon CEO Jeff Bezos parried questions on how the e-commerce site uses competitive data from third-party sellers.