for the latest let's cross to washington dc that's where white house correspondent philip crowther joins the program. philip if this iranian drone threaten the u. s. navy ship tehran must have known the u. s. would respond this way. is this -- way that the twowo countries are testing each other eveven communicating. it would seem a little bit likee at's bececause it t has happened before and remember that there is no direct communication between the united states and iran something that brian took the special representative for iran. at the state department told me earlier today there is no direct communication meaning that everything that iran and the united states say to each other is done publicly for example by the president here in the east room of the white house. just a short while ago all by divides at joe what's a reef the iranian foreign minister when he also speaks publicly or speaks to the press so this is a way of provoking each other in a way because the last incident was less than a month ago after all. that was on the twentieth of june that's when at eightht u. . drone --