Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
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(CNN) – As aircraft disaster investigations go, the downing of Malaysia Airlines Flighty 17 promises everything, but delivers almost nothing.
It has witnesses, debris fields, the so-called black boxes, and experienced accident investigators not far away in Kiev.
But this catastrophe has so far lacked immediate and complete access.
CNN's René Marsh reports.