Initial Western intelligence finds Syrian forces used chemical weapons

WASHINGTON (Reuters) - U.S. and allied intelligence agencies have made a preliminary assessment that chemical weapons were used by Syrian forces in an attack near Damascus this week, likely with high-level approval from the government of President Bashar al-Assad, according to American and European security sources.

The early intelligence finding could increase pressure for action by President Barack Obama, who made clear that he planned to tread cautiously even as his aides sought to narrow their differences in debate over possible military responses to the Syrian government.