Chancellor Angela Merkel’s government plans to fine social media networks such as Facebook Inc. and Twitter Inc. if they fail to combat hate speech, as German officials accuse media companies of being too slow to take action. Volker Kauder, chairman of Merkel’s Christian Democratic Union parliamentary caucus, said on Saturday that he reached a preliminary agreement with Social Democratic Justice Minister Heiko Maas that would require companies to respond to speech complaints within 24 hours. Otherwise they’ll have to pay. “The fines have to hurt, otherwise it won’t work,” Kauder told reporters Saturday at a meeting of the CDU’s leadership in the western region of Saarland...