article_snippet: The devastation is visible from the air.
article_snippet: Corrugated iron roofs lie ripped off among charred debris, the walls of the houses blackened with soot or in ruins.
article_snippet: On the dusty roads that separate properties in the second-biggest town in Borno state, northeast Nigeria, the sight -- and smell -- is much worse, with evidence of atrocities everywhere.
article_snippet: But clearly much worse happened -- and the evidence is on the streets, beneath them and in the parched fields beyond.