Tobacco giant Philip Morris has copped to using 10-year-old workers in its farms based in the Central Asian country of Kazakhstan. The plantations that provide tobacco to the U.S. company also stripped migrant workers of their passports and made them work extra hours for no pay, according to a new report from Human Rights Watch. At least 72 cases of children working on the farms have been documented. A system of human trafficking persisted where workers faced unbearable debts to intermediaries who deliver them to Kazakhstan. The company has pledged to end the abuses.