This week, militants attached to Islamic State attacked a church in Komanda, killing at least 43 people. Why is the jihadist group keen to establish itself in the Democratic Republic of the Congo?

Explainer 517: How the revival of gerrymandering is hurting democracy
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Live from Delphi: Can Europe remake itself into a superpower?
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Explainer 516: Are Albertans about to leave Canada?
07:40