The UN Security Council could find itself again halted by a Russian veto.

A US-backed resolution proposes investigating at least 70 deaths, believed to be from sarin nerve gas dropped by Syrian aircraft.

But Russia says the gas belongs to rebels, and leaked from an insurgent weapons depot hit by Syrian bombs.

UN Dispatch editor Mark Goldberg told Rachel Smalley Russia is likely to vote in its own interest.

He said the Security Council can easily become paralysed when interests of its member states are on the line.

Goldberg said the investigation is needed so possible government abuses don't go unchecked.

He said otherwise the Syrian government will feel free to do what it wants.

LISTEN ABOVE AS MARK GOLDBERG SPEAKS WITH RACHEL SMALLEY