"We are not sure if it's political maneuvering or a sincere act," said Louay Safi, a member of the opposition Syrian National Council. "We have no trust in the current regime. ... We have to see that they have stopped killing civilians."
Arab ministers want Syria to halt crackdown →
"Nobody has any illusions about how difficult, complicated, what a steep climb that is," he said during a visit to Israel.
5 dead in Lebanon clash of Assad foes, backers →