Finally in October 2012, Kazakh, Russian, and American nuclear scientists and engineers celebrated the completion of a secret 17-year, $150 million operation to secure the plutonium in the tunnels of the mountains.
Akhirnya pada bulan Oktober 2012, ilmuwan dan insinyur nuklir Kazakh, Rusia, dan Amerika merayakan selesainya operasi 17 tahun rahasia senilai $ 150 juta untuk mengamankan plutonium di terowongan pegunungan.