For many Filipinos, Facebook is their only way online because subsidies have kept it free to use on mobile phones since its launch in the country in 2013, while the open web is expensive to access. The social media network is believed to have been an important engine behind the ascent to the presidency of Rodrigo Duterte. Beginning in 2016, faked photographs and videos spread alongside false news targeting Senator Leila de Lima, a noted critic of Duterte and his violent war on drugs, and others…