Yep ! that's what they do. If you speak against the regime, you don't get arrested, you're family members gets put in the camps.
I listened to this program. What's even more barbaric is that it's not just the political prisoners, but their families and the next two generations who are kept in those camps as slaves.
It's the biggest loser country in the world. Several years ago, this POS regime got all bent out of shape when the US government ordered a bank in Hong Kong to freeze an account with $25 million in laundered money suspected to have ties to the North Korean government. The regime threw a ****-fit. In international geopolitics, $25 million to most governments is like $100 to you or I - not worth getting embarrassed over. But North Korea is such a ****hole, one of its main generators of hard currency is using its territory as an overland route for smugglers of the worst kind, with regime taking a hefty cut.