why are they providing them. >> reporter: the u.s. says they provide only nonlethal aid. others are shocked at what is happening to their country. they're all our children, she says and it is sad. we are all syrians killing each other. if anything, the increased bombings appear to be strengthening the resolve of assad supporters. god, syria, bashar, and nothing else these men chant at the blast site while emergency workers are busy picking up the remains of those killed. fred pleitgen, damascus. >> the president doesn't know if the assad regime are responsible for these areas. >> we have to do everything we can to investigate and establish