I know, I know, I did read your posts. It's just it's very easy to say how hypocritical the West is, we all know the history, we all know it's true. But it's not actually helping anyone out there.
Here is why there has been selectiveness up to now.
As you know only too well, there is no dictator in Somalia to topple. A no fly zone would be useless. The country is in anarchy. The best option would be for NATO to occupy the country, unite the tribes, kill terrorist group Al-Shabaab and impose democracy. It's just not that simple.
The wheels are already in motion for Bahrain. There will be a special session at UNHRC this week on what is happening there. Just as this Libya action began. Watch this space.
As for the other dictators... Saudi, China, Burma, Iran, North Korea, Turkmenistan, Sudan, Zimbabwe, Eritrea... well, either they are at least in conversation at the UN and the Human Rights Council and at least are promising on the surface to improve, they aren't currently committing genocide, or the countries are so closed the west, or even the press, can't get in to get current evidence of atrocities that will stand up before the Security Council.
The UN is not allowed to just commit regime change. That is illegal. They can only take military action to protect people.
Obviously Iraq happened with the UN's backing.