www.rfa.org/english/news/korea/ids-08212012105201.html, posted 2012 by peter in fascism korea privacy
According to one source, who spoke to RFA on condition of anonymity, the current plastic IDs will be replaced with cards containing circuit chips which store data about the cardholder, including address, family background, and record of travel.
“North Korean people will be made to bring the new ID cards when they travel so security officers can know everything about their trip, such as the person’s destination, when he or she has traveled, and how many times they have traveled,” the source said.
And remember, when North Korea does this, it's oppression. When Western countries do it, it's for your protection and perfectly harmless. You have nothing to hide, do you?