<Dl> <Dd> B. Understandings: The U.S. announced certain interpretive understandings, "which shall apply to the obligations of the United States under this Convention:" </Dd> </Dl> <Dd> B. Understandings: The U.S. announced certain interpretive understandings, "which shall apply to the obligations of the United States under this Convention:" </Dd> <Dl> <Dd> (1) Regarding the definition of certain terms in the Convention, <Dl> <Dd> (a) "Torture" must be specifically intended to inflict severe physical or mental pain . Furthermore, "mental pain" refers to prolonged mental harm resulting from either <Dl> <Dd> (1) the intentional infliction of severe physical pain; </Dd> <Dd> (2) the administration of mind altering drugs; </Dd> <Dd> (3) the use of other procedures that are also "calculated to disrupt profoundly the senses or the personality;" </Dd> <Dd> (4) the threat of imminent death; or </Dd> <Dd> (5) the threat that another person (e.g. a spouse or relative) will imminently be subjected to the foregoing . </Dd> </Dl> </Dd> </Dl> </Dd> </Dl> <Dd> (1) Regarding the definition of certain terms in the Convention, <Dl> <Dd> (a) "Torture" must be specifically intended to inflict severe physical or mental pain . Furthermore, "mental pain" refers to prolonged mental harm resulting from either <Dl> <Dd> (1) the intentional infliction of severe physical pain; </Dd> <Dd> (2) the administration of mind altering drugs; </Dd> <Dd> (3) the use of other procedures that are also "calculated to disrupt profoundly the senses or the personality;" </Dd> <Dd> (4) the threat of imminent death; or </Dd> <Dd> (5) the threat that another person (e.g. a spouse or relative) will imminently be subjected to the foregoing . </Dd> </Dl> </Dd> </Dl> </Dd>

Which of the following practices is considered to be illegal in the united states