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Full Documentary- Discovery Channel-Best Evidence-Chemical Contrails 2 of 5 sub español.avi

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Published on Feb 5, 2010

tercera parte: http://www.youtube.com/watch?v=dmDGVS...
The Discovery Channel aired this documentary on August 10th,2007
it talks about the possibility that jet contrails may contain ominous chemicals

El Discovery Channel puso al aire este documental el 10 de agosto del 2007
habla de la posibilidad de que los jet contrails (condensation trails en ingles), contengan sustancias quimicas nocivas

to view spa subtitles pls enable the "CC" captions in your screen
para ver los subtitulos en esp, por favor, habilitar la opcion (CC) en su pantalla...

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thank you
gracias

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