BARBARA ORTUTAY
AP Technology Writer
SAN FRANCISCO (AP) — Democratic presidential candidate Elizabeth Warren has escalated her tiff with Facebook by running an ad — on Facebook — taking aim at its CEO, Mark Zuckerberg.
It's the latest example of growing resentment of Big Tech by Republicans and Democrats alike.
The list of grievances is long: Companies like Google, Facebook and Amazon are too big and powerful. They're bad for privacy, public discourse, democracy and small business. They're spying on us, contributing to economic inequality and hooking us and our children on addictive, useless services. The companies, of course, object to these characterizations.
Warren, who in March proposed breaking up big tech companies, began running a text ad on Facebook last Thursday to tak
