• BEIRUT (AP) -- The U.S. government insists it has the intelligence to prove it, but the American public has yet to see a single piece of concrete evidence -- no satellite imagery, no transcripts of Syrian military communications -- connecting the government of President Bashar Assad to the alleged chemical weapons attack last month that killed hundreds of people.
• In the absence of such evidence, Damascus and its ally Russia have aggressively pushed another scenario: that rebels carried out the Aug. 21 chemical attack. Neither has produced evidence for that case, either. That's left more questions than answers as the U.S. threatens a possible military strike.
• The early morning assault in a rebel-held Damascus suburb known as Ghouta was said to be the deadliest chemical weapons attack in Syria's 2½-year civil war. Survivors' accounts, photographs of many of the dead wrapped peacefully in white sheets and dozens of videos showing victims in spasms and gasping for breath shocked the world and moved President Barack Obama to call for action because the use of chemical weapons crossed the red line he had drawn a year earlier.
• Yet one week after Secretary of State John Kerry outlined the case against Assad, Americans -- at least those without access to classified reports -- haven't seen a shred of his proof.
• There is open-source evidence that provides clues about the attack, including videos of the rockets that analysts believe were likely used. U.S. officials on Saturday released a compilation of videos showing victims, including children, exhibiting what appear to be symptoms of nerve gas poisoning. Some experts think the size of the strike, and the amount of toxic chemicals that appear to have been delivered, make it doubtful that the rebels could have carried it out.
• ___

• KABUL, Afghanistan (AP) -- A powerful explosion went off next to an Afghan intelligence office not far from the capital Sunday, a provincial lawmaker said. There

(Continued on page 26)