tonight president obama s blurb, i m sorry, red line, for syria is again being put to the test. the president ordering american intelligence agencies to determine whether bashar al assad s government used chemical weapons against civilians after the disturbing images appeared to show hundreds if not more than 1,000 bodies lined up near damascus. certainly this would be an outrageous escalation of chemical weapons use if we are if the facts are found to be true and the president has a range of options to consider. those options, though, are still unclear. it s now been a full year since president obama set his red line and we ve now watched al assad s regime cross it once possibly twice on the use of chemical wechs. but tonight hearing for the first time from an american held hostage by al qaeda in syria and
i have made clear that the use of chemical weapons is a game changer. reporter: earlier this week, israeli intelligence officials found evidence that sarin gas has been used in two attacks in aleppo and near damascus. victims suffered from foaming from the mouth and other symptoms which indicate the use of chemical weapons. reporter: an account backed by syria s rebel leader. it was very clear that the regime used the chemical weapons. reporter: still, the obama administration is called on the united nations to investigate, saying there s a need for clear and credible evidence. white house officials are warning what happened the last time the u.s. rushed to war over weapons of mass destruction. a note of caution on the same day president obama attended the opening of president george bush s presidential library. i think it s pretty obvious
the assessment is based on physiological samples. a senior white house official told reporters if proven true ultimately assad is accountable. it s a message president obama clif delivered during his visit to israel just last month. once we establish the facts, i have made clear that the use of chemical weapons is a game changer. reporter: earlier this week, israeli intelligence officials found evidence that sarin gas has been used in two attacks in aleppo and near damascus. victims suffered from foaming from the mouth and other symptoms which indicate the use of chemical weapons. reporter: an account backed by syria s rebel leader. it was very clear that the regime used the chemical weapons. reporter: still, the obama administration is called on the united nations to investigate, saying there s a need for clear and credible evidence.
of chemical weapons is a game changer. reporter: earlier this week, israeli intelligence officials found evidence that sarin gas has been used in two attacks in aleppo and near damascus. victims suffered from foaming from the mouth and other symptoms which indicate the use of chemical weapons. reporter: an account backed by syria s rebel leader. it was very clear that the regime used the chemical weapons. reporter: still, the obama administration is called on the united nations to investigate, saying there s a need for clear and credible evidence. white house officials are warning what happened the last time the u.s. rushed to war over weapons of mass destruction. a note of caution on the same day president obama attended the opening of president george bush s presidential library. i think it s pretty obvious
journalist near damascus. this happening on the heels of reports that syria is moving its chemical weapons. the president is not having it. the world is watching. the use of chemical weapons is and would be totally unacceptable and if you make the tragic mistake of using these weapons, there will be consequences and you will be held accountable. gretchen: syria s president assad claims he would never use chemical weapons on his own people, but who believes that because assad has been massacring his own people for the last two years. his father was accused of using cyanide in 1983 that left as many as 20,000 of their own people dead. steve: now the we re is sarin gas. there is a reason elderly people are the target of scammers. a study finds older people have a harder time recognizing shady characters than young adults because as we get older, the part of the brain that controls