This ISIS release isn't as graphic as a beheading video, but it's no less disturbing. According to the UN's Zainab Bangura, the terrorist group is circulating a pamphlet that lists specific prices for its captives, including sex slaves and infants. Bangura says she's verified the pamphlet, which first surfaced online in November, since getting hold of a copy in Iraq in April, noting it reflects actual transactions. "The girls get peddled like barrels of petrol," she tells Bloomberg. "One girl can be sold and bought by five or six different men. Sometimes these fighters sell the girls back to their families for thousands of dollars of ransom."
Bangura says the group's leaders get the first pick of captives before outsiders bid into the thousands on those that remain. Afterward, children aged 1 to 9 are typically sold to Islamic State fighters for about $165, according to the pamphlet. The prices then fall as the captives' ages rise. Adolescent girls fetch $124, while women over 20 are sold for less. The organized price list is just another way ISIS differs from other militant groups, Bangura says. "They have a manual on how you treat these women. They have a marriage bureau which organizes all of these 'marriages' and the sale of women," she says. "They have a machinery." (Read more Islamic State stories.)