Radioactive polonium, which British medical experts believe was used to poison the former FSB officer Aleksandr Litvinenko, is available online at the website of the US company , which offers 0.1-microcurie samples of polonium-210 at the cost of $69. However, the fatal polonium dosage is 1-2 millicuries, or 10 to 20 thousand times higher. The price of such quantity of polonium is $700 to $1,400. A notice on the United Nuclear website reads that polonium can be delivered only within US borders.
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