on what kind of response to expect. now u.s. officials tell nbc news they are confident the assad regime was behind last saturday s deadly attack in syria after blood and urine samples tested positive for chemical weapons. for more, joining me is bill neely. bill, bashar al assad has appeared in public. he made a statement and appeared notably about iranian officials. yeah, correct. for the last three days he has been photographed. it appears he is still in de mass discuss. predictab predictablening. today he said western threats are based on lies made up by the u.s. and that they would only lead to further chaos. kind of ironic that a man who has presided over chaos, some of which he caused is worried about further chaos to come. and yes, he appeared with a foreign affairs adviser to iran s supreme leader who