Alas, Darya Gudkova, a Kaspersky Lab analyst, said that spam is not going the way of the dinosaurs just yet.

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This may set a precedent for similar agreements on the Amu Darya and the Syr Darya, although Uzbekistan remains opposed to anything of the sort.

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In order to fulfil their promise, they diverted two rivers that drained the melted snow from the western Himalayas: the Amu Darya and the Syr Darya.

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The Darya-e Nur, meaning sea of light, at 185 carats (37 g), the largest and finest diamond of the crown jewels of Iran came from the mines.

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The two largest pink diamonds - the Darya-I Nur, weighing 175 to 195 carats, and the Nur ul-Ain, weighing about 60 carats - originally formed part of the Iranian Crown Jewels.

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In Soviet times, Tajikistan like other Central Asian republics, particularly Uzbekistan and Turkmenistan used to take far too much water from the Amu Darya and Syr Darya rivers for grandiose irrigation schemes, mainly for cotton farming.

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The public version of the report did not list specific countries but only watersheds of concern (Nile, Tigris-Euphrates, Mekong, Jordan, Indus, Brahmaputra, and Amu Darya) that corresponded with nations that are strategically important to the United States, illustrating the intersections between water challenges and U.S. national security.

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