AFOLABI SOTUNDE FAMILIES of more than 300 kidnapped Nigerian schoolboys worried they may be radicalised or held for years as security forces combed a vast forest on Wednesday for armed captors possibly from the jihadist Boko Haram movement. According to an unverified audio clip, the group - whose name means "Western education is forbidden" - was responsible for last week's raid on an all-boys school in the town of Kankara in northwestern Katsina state. Parents fear time may be running out: Boko Haram has a history of turning captives into jihadist fighters. "They will radicalise our children if the government…