From Asia Times:

The taste of Choco Pie, moreover, apparently is spreading like a poison that is contaminating the [North Korean] system. Since businesses in the complex began serving the snack four years ago “to boost morale”, said Chosun Ilbo, the South’s biggest-selling newspaper, it’s had “explosive popularity among workers”.

How does one become a Choco-Pie bootlegger?  I see great potential in that line of business.