thank you, shimon prokupecz. this just in, the pentagon concluding iron was behind has week's deadly attack off the coast of oman. straight to pentagon correspondent barbara starr. what led officials to this conclusion? >> well, ana, the pentagon taking the unusual step of calling out iran directly, issuing a statement and several images of the damage caused to this commercial vessel back on july 30th off of coast of oman. how did it come to this conclusion? the ship suffered an attack from an armed drone that crashed into its deck and this came after two failed attempts with other drones. when the damage occurred, the "uss ronald reagan" put explosive experts aboard the vessel, gathered evidence, got forensics and analyzed it and come to the conclusion this