Rescuers face 'difficult situation' amid risk of more flooding, says expert

With debris and water having built up in the wake of Wednesday's devastating flash flood, rescuers on the ground face a "difficult situation" amid risk of another flood in the coming days, according to a geological expert. Dr Alena Giesche, a geologist with the US Geological Survey, tells the BBC at least one of the areas that accumulated debris from the initial flow already appears to be releasing some water. "People are working in these same hazardous regions and facing that ris