Johnson, Alissa. "Attack of the Clones: As Cloning Technology Marches Forward, State Legislatures Are Faced With Some Hard Decisions." State Legislatures 29 (April 2003): 30-33.
Kolata, Gina. "First Mammal Clone Dies: Dolly Made Science History. The New York Times 15 February 2003: A4.
Mooney, Chris. "The Future Is Later." The American Prospect 13 (15 July 2002): 10-11.
Advocates of therapeutic cloning argue that stem-cell research, aimed at using cell therapy to strengthen immunity and genetic makeup, should be conducted on embryonic stem cells, which are the most potent kind (Brown 651 passim). Some researchers say "therapeutic cloning ought to be treated differently from cloning to make a baby" (Singer 88). Similarly, Mooney cites the "army of patients suffering from serious and often life-threatening degenerative diseases" (Mooney 10).
Cohen, Jacques, and Tomkin, Giles. "The Science, Fiction, and Reality of Embryo Cloning." Ethical Issues in Human Cloning: Cross-Disciplinary Perspectives. Ed. Michael C. Brannigan. New York: Seven Bridges P, 2001. 11-20.