NEW : At least 72 die nationwide , an opposition group reports . NEW : Another year of horror . This includes 21 dead in a `` horrible massacre , '' says the group . The Syrian Observatory for Human Rights said at least 100 people were killed and more than 200 wounded when security forces opened fire on protesters near Damascus's central square. Private companies are vying to destroy the more common chemicals .
NEW : At least 72 die nationwide , an opposition group reports . NEW : This includes 21 dead in a `` horrible massacre , '' says the group . The Syrian Observatory for Human Rights said at least 100 people were killed and more than 200 wounded when security forces opened fire on protesters near Damascus's central square. Private companies are vying to destroy the more common chemicals .