Your daily look at late-breaking news, coming events and the stories that will be talked about today:
1. U.N. ENVOY TO SYRIA SAYS CHEMICAL 'SUBSTANCE' USE
2. WHITE HOUSE PROMISES PROOF
The release of an intelligence report formally linking Assad to the purported chemical attack could come as early as today.
3. FIFTY YEARS AGO, KING DELIVERED 'I HAVE A DREAM' SPEECH
4. FORT HOOD GUNMAN RESTS CASE
5. WHY YOSEMITE WILDFIRE GREW SO BIG SO FAST
6. NUKE THREAT LEVEL RAISED
Japan upgrades the leak of 80,000 gallons of radiation-contaminated water at the tsunami-wrecked Fukushima plant to a "serious incident."
7. WHO'S TAKING RESPONSIBILITY FOR DISRUPTING N.Y. TIMES' WEBSITE
A shadowy group of pro-Assad hackers known as the Syrian Electronic Army says it launched the cyberattack — and a similar assault on Twitter.
8. SCIENTISTS SAY EXISTENCE OF NEW ELEMENT CONFIRMED
The short-lived by super-heavy element has been dubbed "ununpentium." A catchier name is likely coming.
9. HOW FINANCIAL MARKETS ARE REACTING TO POSSIBLE SYRIA STRIKE
The Dow falls 170 points, Asian stocks plunge and the price of oil soars.
10. LITTLE-KNOWN AMERICAN SHOCKS EX-CHAMP
Seventeen-year-old Victoria Duval, who's ranked 296th in the world, knocks off Samantha Stosur at the U.S. Open. Stosur won the tourney in 2011.