International Editor Bill Neely in Damascus says the Syrian capital is "relatively calm" but people are worried and take no comfort from President Obama's reassurance that any military strikes will be "limited and narrow".
He explains the Syrian army's campaign against rebels is also continuing with regular shelling:
Syrian government officials were watching President Obama's White House speech. I didn't see them smile but there's no doubt they did.
Footage has emerged which appears to show an horrific incident incendiary weapons in northern Syria near a school.
After last week's clouds of poison gases in the suburbs, people in Damascus are bracing themselves for the expected missile retaliation.