The answer lies in the old Indian caste system.

答案在于古印度的种姓制度。

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Continuing disasters in the Indian Ocean made Indonesia decide it must have a warning system of its own.

VOA: special.2009.03.17

It supervised creation of a system for nations on the edges of the Indian Ocean after the great earthquake and tsunami of two thousand four.

VOA: special.2009.03.17

The Argos deployed off the Lady Amber constitute a major contribution to the Indian Ocean Observing System and will assist scientists better understand and be able to predict the Indian Ocean's dynamics, and thereby lead to societal benefit as that understanding and associated products transfer to Indian Ocean communities through the Indian Ocean Global Ocean Observing System (IOGOOS) framework.

UNESCO: Social and Human Sciences

The United States is also involved in the Indian Ocean system, and is an important strategic partner.

UNESCO: Let's be prepared for tsunami threat in Caribbean, Gulf

Most critics have praised this saga of Phoolan Devi and her lone battle with the oppressive Indian caste system as a brave piece of cinema.

CNN: The start Of something big?