NBC interview with prison guard
2003 Dateline interview with Ahn Myong Chol, who worked at four different camps including "National Security Defense Division No. 22 Hoeryong Prison." He was there from 1987 to 1994, working part of the time as a driver delivering food to guard posts. He describes some of the cruelty and atrocities he witnessed, including rape, beatings, torture, drownings, and starvation.