White House Says Syria Used Sarin Gas on Its Own People

David kerley, thanks. Now, the stunning statement from the white house. The u.S. Says it has evidence that syria has used chemical weapons on its own people. President obama has said many times, that... See More

David kerley, thanks. Now, the stunning statement from the white house. The u.S. Says it has evidence that syria has used chemical weapons on its own people. President obama has said many times, that would be a red line for the u.S. To take action. But is the evidence strong enough? A question for abc's martha raddatz, joining us, now, in washington with more. Good morning to you, martha. Reporter: Good morning, josh. The language in this assessment is the strongest we have seen. And very specific. The white house saying, that the intelligence community believes that the syrian regime has used the nerve agent serin on a small scale. That's an agent that paralyzes and suffocates its victim. There's a varying degree of confidence that sarin was used. And want more tests to prove it. This seems a red line, josh, that still has shades of gray. This is something the president had been very clear about in the past. Reporter: President obama did say at one point, there would be enormous consequences if president assad used chemical weapons. But we're talking about the possibility of military action in syria or a no-fly zone. So, the administration is not rushing into this.