Conservative billionaire Vincent Bollore, the owner of the Hachette group, pledged on Sunday to find new authors to replace the some 170 who have left the prestigious subsidiary Grasset in protest at alleged political interference. The protest was triggered by the departure of Grasset's chief executive, Olivier Nora, which the authors blame on Bollore, who is known for his highly conservative views and has shifted his outlets ever further to the right. Bollore's family made its money by means of ports and trading in Africa Image: Julien De Rosa/AFP What did Bollore say? In a commentary published by the Journal du Dimanche newspaper, which he also owns, Bollore expressed surprise at the "uproar" at Grasset, while vowing to keep it going with new authors. "Grasset will continue, and those who are leaving will allow new authors to be published, promoted, recognized, and appreciated," Bollore said.…