Syria warns that opposition could use chemical weapons against civilians and blame government

UNITED NATIONS - Syria's U.N. ambassador is warning that extremist groups could use chemical weapons against the Syrian people and blame the government.
Bashar Ja'afari reiterated in letters, circulated Monday, to the U.N. Security Council and Secretary-General Ban Ki-moon that the Syrian government is "genuinely worried" that foreign countries could provide chemical weapons to armed groups "and then claim they had been used by the Syrian government."
Although the West has shown little desire to intervene in Syria, President Barack Obama has said the regime's use of chemical weapons against the rebels would be a "red line" and change his "calculus" about a conflict.
As the prospect of intervention gains traction, the Syrian government has been careful to never actually confirm it has chemical weapons and is instead trying to raise fears it may be framed by rebels using such weapons to spur an outside attack.