A military push toward Tripoli should be promoted and not discouraged. If Nato wants to avoid instability and bloody retribution then it should instead aim to swiftly end the Gaddafi regime and focus efforts on the post-Gaddafi transitional period, with a particular emphasis on representation.
NATO officials claim that as the pressure increases on Muammar Gaddafi, it is just a matter of time before he is either killed or forced to depart Libya. One hopes so, but hope is not a military strategy.
The Libyan conflict seems headed in the same direction as the wars in Iraq and Afghanistan -- the truth is supplanted by lies and half-lies and we sink once again into a sea of obfuscation. We know we'll never get the real truth.