premise: In the course of a long night , two Black Hawk helicopters were shot down , 73 Americans were wounded , 18 were killed , and the world 's television screens showed images of an American corpse dragged through the streets by exultant Somalis and true is true and true is true and true is true and true is true and true is true .
hypothesis: It was n't divulged until years later that the US military had suffered serious losses on that night in Somalia .