This document presents the text of a Congressional hearing, chaired by Representative George Miller, on the epidemic of gang warfare and violence among youth. Testimony is presented from these witnesses: (1) James Brown, juvenile court probation officer, Multnomah County Juvenile Justice Department, Portland, Oregon; (2) John A. Calhoun, executive director, National Crime Prevention Council, Washington, D.C.; (3) John A. Carver, director, District of Columbia Pretrial Services Agency; (4) Elliott Currie, criminologist, Center for the Study of Law and Society, University of California, Berkeley; (5) Julius Derico, section commander, special investigations section, intelligence unit, Atlanta Department of Public Safety, Bureau of Police Services, Georgia; (6) Marianne Diaz-Parton, coastal unit supervisor, Community Youth Gang Services, Los Angeles, California; (7) Falaka Fattah, director and founder, House of Umoja, Philadelphia, Pennsylvania; (8) Shawn Grant and Ismael Huerta, gang members; (9) Martin S. Kesselman, director of clinical psychiatry, Kings County Hospital Center, and professor of clinical psychiatry, State University of New York, Health Science Center, Brooklyn, New York; (10) Robert Martin, director, Chicago Intervention Network, Chicago, Illinois; and (11) Deborah Prothrow-Stith, commissioner, Massachusetts Department of Public Health, Boston. Prepared statements and supplemental materials from these witnesses, Representative George Miller, and V. G. Guinses, the executive director of SEY YES (Save Every Youngster Youth Enterprise Society) of Los Angeles, are included. (ABL)