reporter: more than three days after the crash, aviation experts worry the scene has been comprised and critical evidence potentially lost. now only complicating efforts to investigate this crash. there are new reports of violates in the region. danielle lee reporting on capitol hill. thank you. the u.n. council is calling to an immediate end to the fight against israel and zba za. an emergency closed door session was held last night. sunday marked the first major ground battle between israel and hamas. two of the israeli soldiers were reportedly american were killed. martin fletcher is in tell-avit. there was a temporary ceasefire but it didn t last long. any hope the violence could end today? frankly, no chance at all. the israelis say they re going intensify the fighting. hamas is fighting back and
scheduled all weekend long on both the violence in zba za and the plane crash. but don t look for the president to make a rush to judgment on putin just yet. he says he wants more facts, not speculation. wolf. jim acosta at the white house. thanks very much. all eyes clearly on the russian president. brian todd is taking a closer look at his potential next move. brian, what are you finding out? vladimir putin and the pro-russian rebels in ukraine who he supported have denied any involvement in the crash. analysts belief putin circled the wagons in moscow and weighing his options from a position of growing isolation. vladimir putin responded in predictable fax by hunkering down defrekt flecting blame toward ukraine. translator: this tragedy would not have happened if there had been peace on that land or if military operations in southeastern ukraine had not been renewed.