Installing the 'Red Star' operating system and solving information technology problems puts money in the pockets of the technologically savvy.
Meanwhile, security officers travel with larger vessels to monitor crews' use of communications equipment.
The 'dishonorable discharge' means expulsion from the Workers Party, but at least worn out soldiers get to go home.
Political prisoners and citizens of low social standing are sent to work in the mines under harsh conditions, report says.
Clothing must not bear labels showing manufacture in rival South Korea, though.
Judicial authorities will not allow them to work in outside business ventures unless they fulfill their work obligations to the state.
Soldiers from less well-off families meanwhile serve at dangerous posts or in construction brigades.
Many are exhausted from working without compensation to show their commitment to the repressive regime.
UN sanctions are helping push vacancy rates up in Dadong, China as business with North Korea slows.
They are avoiding patronizing them so as to not attract additional attention from North Korean monitors who track their moves.
But sales of Taedonggang beer are limited to stores that carry products for the Korean communities in two cities in Liaoning province.
Removal of a national symbol looks like a protest against the dictatorship.
Police in North Hamgyong province stop and fine drivers for a wide range of infractions, sources say.
Closures come after deputy health minister finds multiple problems at clinics in Dar es Salaam following RFA investigation.
The move will further reduce the profits earned by store managers, adding to central government revenue.
They avoid paying rent by helping Chinese partners make contacts for trade across the border.
New, tough U.N. sanctions against the country for its recent nuclear test and rocket launch have prompted the move.