The Queens woman who steered a van full of foster children into oncoming traffic Monday night had alcohol in her system and a crack pipe in her... possession, investigators say. The horrific crash claimed the lives of two of the five children in the van, but driver Sheila Bethea, 45, survived. Yesterday prosecutors charged her with manslaughter, assault, and endangering the welfare of a child. One witness tells the Times the crash "sounded like a truck hit a building."


