U.S. intelligence has established timeline of Syrian chemical attack, officials say

Washington Post WP 28.8.2013 – As the West looks ready to act against Syria, accused of using chemical weapons against its own citizens, here are 10 instances when America has intervened, sometimes without authorization from the United Nations.

In a telephone call Tuesday with British Prime Minister David Cameron, Russian President Vladimir Putin said his government “did not have evidence of whether a chemical weapons attack had taken place, or who was responsible,” a statement on Cameron’s official Web site said.

http://www.washingtonpost.com/world/national-security/obama-administration-lays-groundwork-for-probable-military-strike-against-syria/2013/08/27/538d072e-0f3c-11e3-bdf6-e4fc677d94a1_story_1.html