Mr. President. much has been written and said in recent days regarding the tragic bloodshed and murder which took place in the Palestinian refugee camps of Shatila and Sabra in Lebanon. We have seen on our television screens and read in our newspapers of this sudden and incredible massacre. However. the chain of events which led up to it. the actions of the Israeli Government and Army. and the questions of who knew what and when are certainly not fully known. There is considerable confusion as to who should bear the responsibility for the incredible horror of Shatila and Sabra.