UN Security Council members failed to agree the statement on Syria

The UN secretary general has condemned Syria for using tanks and live ammunition against protesters.

Calling for an independent investigation into recent killings, Ban Ki-moon said Syrian authorities had an obligation to respect human rights.
UN Security Council members have so far failed to agree a joint statement. [1]

but why?! and here is the answer: as we all remember, Russia and China were neutral about Libya's 'problem'; however, in Russian society this step was considered as a big mistake in foreign policy. So, and this respect, Russia and China won't make one mistake twice. UN Security Council won't agree a joint statement and, maybe, there is possibility to use NATO forces, as it was in Iraq. Moreover, it becoming obvious that the Syrian so-called 'humanitarian intervention' might be infringement of Russian and Chinese business and military interests.