ship's sonar tracking system. the navy will investigate what went wrong. >> russians foreign minister says western power should not pass up an opportunity to clinch a nuclear deal with iran. talks will resume wednesday. defense secretary chuck hagel speaking at the reagan presidential library predicts the united states will get a good deal that is krael can liv with. barbara starr talked to him exclusively. >> how worried are you if there is an agreement israel will react with some sort of military force against iran? what concerns do you have about that? >> those are realities. the israelis explain that to us. we understand that. i think the iranians understand that. our partners understand that. that reality, the use of military force is always an option. we would never tell israel or