Ambassador John Campbell and Emmanuel Ogebe debate the extremist groups capabilities.\r
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Experts say Nigerias Boko Haram appears to be increasing its use of a particularly brutal terrorist tactic: forcing abducted girls to blow themselves up in crowded .\r
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For more Latest and Breaking News Headlines SUBSCRIBE to Nigerias army said it attacked Boko .\r
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Nigeria-based Islamic militants Boko Haram are intensifying cross-border attacks in response to coordinated action to fight the group. Chad and Cameroon have .