См. также: обязанность, переходящая по наследству, обязательная продажа, обязательство с множественностью лиц, обязывающая сила
Several current and former CGTN colleagues have confirmed that around the time of Cheng's arrest, most were given a "non-disclosure undertaking" (NDU) to sign, which considered "any and all non-public data or information of CGTN" as "confidential". (ABC News)
