Why are we still sleeping?

I was going through some records on genocide reports. The worst was the Holocaust which cost around 2 million jews life during second world war. The mass slaughter was committed by Nazi's with the intention to wipe out Jews from the earth. Other than holocaust, the world recordered Polt Pot military rule (Khmer Rogue) killed 1.7 million people in Cambodia, genocide in Darfur, genocide in Palestinian, genocide in Sarajevo etc. Millions was killed but looks like the International Community and Organisation failed to learn from past failure to stop the genocide.

United Nations Prevention of Genocide office says, The Convention on the Prevention and Punishment of the Crime of Genocide (1948) defines genocide (article 2) as “any of the following acts committed with intent to destroy, in whole or in part, a national, ethnical, racial or religious group…” including:

(a) Killing members of the group; (b) Causing serious bodily or mental harm to members of the group; (c) Deliberately inflicting on the group conditions of life calculated to bring about its physical destruction in whole or in part; (d) Imposing measures intended to prevent births within the group; (e) Forcibly transferring children of the group to another group.

The Convention confirms that genocide, whether committed in time of peace or war, is a crime under international law which parties to the Convention undertake “to prevent and to punish” (article 1). Because it is a part of international customary law the Convention is considered applicable in all countries, irrespective of whether they have signed or ratified it.

Eventhough we have many incidents yet International Community and Organisation was not doing enough to stop the genocide from occuring again. The reports from International Non-Governmental Organisation and individual from Sri Lanka are really disturbing. Initially GOSL said they have successfuly liberated the mass Tamil people from the LTTE control soil but just later it was understood they was sent to internment camp which was barbed with electric wire. Tamilians are living in internment camp as a prisoner which was not found guilty by the court. Source also said, the kids was separated from their parents and as many as 10,000 Tamilians are missing from the camp. Many was taken away from camp without proper records and never seen after that. Suspected cadre which was accounted for 25,000 was separated and no proper records. The worst, Channel 4 clip was not investigated by the neutral party to prove the clip was duped. Why, no action was taken by International Community and Organisation other than writting letter to GOSL?

I don't understand why International Community and Organisation are still sleeping on this atrocities? Please don't tell me they deserved just because they stand for their rights for self determination.