For North Koreans, being sent to work abroad is often seen as a precious chance to earn money for their families while getting a rare glimpse of the outside world. But workers arriving in Russia find themselves working long hours in unbearable conditions, only to owe more than they make, researchers say in a new report. They are among more than 100,000 North Korean nationals being exploited as part of a state-sponsored labor program that operates in 40 countries, according to Global Rights