Little Sign of US Weapons Getting in Hands of Syrian Rebels

Meanwhile regime forces are applying pressure

A month after the White House announced it was boosting aid to the Syrian opposition, rebel leaders say they have seen little or no evidence of U.S.-supplied arms entering the country and momentum on the ground is shifting toward the regime, analysts say.

It is not clear what is causing the delay. Administration officials have said they will vet rebel groups to ensure that weapons don't fall into the hands of al-Qaeda-affiliated opposition forces.

Meanwhile, forces loyal to President Bashar Assad are placing pressure on rebels in Homs, a strategic city that lays astride supply lines into Damascus from the Mediterranean.