"Footage shows them being used in Syria, but President Assad denies civilians have been harmed."
And the BBC gives greater prominence to his lie than the truth. And Jeremy Bowen's response it to suggest inadequacy, "either callousness, an awkward attempt at humour, or a sign that Mr Assad has become so disconnected from what is happening that he feels overwhelmed," while Jonathan Tepperman of the Washington Post was less forgiving, "Either Syria’s president is an extremely competent fabulist — in which case he’s merely a sociopath — or he actually believes his lies, in which case he’s something much more dangerous (like a delusional psychopath)."*
Here** is 37 minutes of footage of Assad's forces dropping barrel bombs from last year.
*[http://www.washingtonpost.com/…/571671b4-a77f-11e4-a2b2-776…]
**[https://www.youtube.com/watch?v=4R4UK3r5_Ow]