Summary: Facebook is under increasing pressure to regulate and remove extremist and hateful content from its platform. Several major corporations have pledged to stop buying ads on the social media site during July unless the company acts. With advertising comprising 98 percent of Facebook's revenue, its share value has already dropped. But will the boycott effect major change? Stephanie Sy reports. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders
