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Almost 20 years ago, a young student at the National University of Mexico went in search of a very old instrument in the mountains of the southern state of Oaxaca. Today, he has become a leading force in the revival of the instrument called the bajo quinto and the music played on it.

Ruben Luengas was working on a research project at the National School of Music in Mexico City in 1995. He wanted to focus on the music of his hometown, in the Mixtec region of Oaxaca, so he asked his 97-year-old grandmother to tell him about the music played at her wedding.

In the chicken and pork industries, nearly every aspect of the animals' raising has long been controlled by just a handful of agriculture conglomerates. But the cattle industry is still populated by mom-and-pop operations, at least at the calf-raising level.

After taking all 50 of its nuclear reactors offline following a devastating accident last year, Japan is planning to restart the first of two of them in western Fukui prefecture as early as Sunday.

The catastrophe at the Fukushima Dai-ichi nuclear plant in March 2011 forced Japan to scale back plans to aggressively expand its nuclear energy sector. But the highly controversial move to restart the two reactors on the other side of the country is a sign that the nuclear power lobby isn't throwing in the towel yet.