Video - Nigerian government has succeeded in diminishing terror threat

In Nigeria, Islamist extremist group Boko Haram was once reputed to be the deadliest terrorist outfit in the world. But the Nigerian military has pushed the insurgents out of virtually all the territories it once controlled in the country's north-east. Presently, a weakened Boko Haram has resorted to sporadic suicide bombings. CGTN's Deji Badmus explains just how the Nigerian government was able to curb an insurgency that used to threaten an entire sub-region.