ISIL's claimed responsibility for Tuesday's jailbreak, which freed more than 800 inmates.
About 400 prisoners are still on the run.
Among them: several commanders of ISIL and Boko Haram, two armed groups that have carried out a series of attacks across Nigeria.
The prison break is raising more doubts about the government's capacity to deal with spiralling insecurity.
Does Nigeria have the resources - and capabilities - to curb violence by armed groups without assistance?
Presenter: Rob Matheson.
Ali Ndume, Senator for Borno South Nigeria.
Aisha Yesufu, founder of Citizens Hub and co-founder of Bring Back Our Girls movement.
Bulama Bukarti, senior fellow on sub-Saharan Africa at the Tony Blair Institute for Global Change.
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