US Congress & Kremlin agree: 'Red lines have been crossed in Syria!'

"... Members of both the House and Senate intelligence committees have moved to enact stringent restrictions on funding the Syrian rebels, a move sufficient to prevent the White House from delivering on arms shipments according to sources who spoke with The Hill. 
In mid-June, following allegations from the White House that the Assad government had used chemical weapons against opposition forces moving to depose him, the Obama administration authorized arms shipments in a marked escalation of US involvement in the region.... 
According to The Hill, lawmakers moved to block the military aid out of fears that weapons would fall into the hands of terrorist groups. US analysts are in particular concerned over the strengthening of the Syrian al-Qaeda-affiliated group Jabhat al-Nusra, also known as the al-Nusra Front. ..."