National: SHOOTING-TIMES (3rdld) -- In an act of violence that sends shock waves through the American military establishment and raises questions about base security, a man armed with two handguns allegedly opens fire on the grounds of Texas' Fort Hood, the country's largest military base; 12 people are killed and 31 others injured, and the suspect, an Army psychologist, is shot and is in custody. 840 words, by Julian E. Barnes, Josh Meyer and Kate Linthicum (Times). With SHOOTING-POST (1stld) and SHOOTING-BASE. SHOOTING-HASAN -- WASHINGTON -- Nidal M. Hasan prayed every day at the Muslim Community Center in Silver Spring, Md., a devout Muslim who, despite asking to be discharged from the U.S. Army, according to his aunt, was on the eve of his first deployment to war; his aunt, Noel Hasan of Falls Church, Va., says he had endured name-calling and harassment about his Muslim faith for years after the Sept. 11, 2001, attacks and had sought for several years to be discharged from the military. 1,100 words, by By Mary Pat Flaherty , William Wan and Christian Davenport (Post). With SHOOTING-HASAN-BIO and SHOOTING-MOSQUE. HEALTH-TIMES -- WASHINGTON -- Public pressure from left and right on the House health care bill provides a dramatic background for a scheduled floor debate Saturday -- with a vote expected later that day. 850 words, by Janet Hook and Noam N. Levey (Times). With HEALTH-POST (1stld), HEALTH-SCENE, HEALTH-OBAMA, HEALTH-ENDORSEMENTS and HEALTH-TEAPARTY. GAY-BAR -- After a four-month internal investigation, the Fort Worth (Texas) Police Department announces that it has suspended a sergeant and two officers in connection to a summer raid on a gay bar in which authorities clashed with hundreds of bar patrons. 380 words, by P.J. Huffstutter (Times). International: AFGHAN-TIMES -- KABUL -- The top United Nations official in Afghanistan issues an unusually pointed warning to President Hamid Karzai to enact major political reforms or risk losing the support of the international community. 800 words, by Alexandra Zavis (Times). With AFGHAN. Financial: INSIDER-TRADING (1stld) -- NEW YORK -- As an eavesdropping-detection specialist, Kevin D. Murray normally works for companies concerned about possible spying by competitors, but since a blockbuster insider-trading prosecution built on wiretaps and microphone-wearing informants became public last month, frantic hedge fund managers have raced to hire him; the scandal expands as federal prosecutors file criminal charges against 14 people, bringing the number of those charged in the continuing probe to 20. 1,000 words, by Walter Hamilton (Times). RETAIL-SALES -- U.S. retailers have their best month in more than a year in October as shoppers turn to discounters and high-end stores alike. 780 words, by Andrea Chang (Times). With RETAIL-SALES-POST and ECONOMY. OPEN-HOUSE -- LOS ANGELES -- As the housing market splutters, some real estate agents hold open houses at properties listed higher than $10 million. 1,230 words, by Lauren Beale (Times). Two photos. Health and Science: GENE-THERAPY -- In the third gene therapy success of recent weeks, French researchers arrest the progression of the rare and fatal degenerative disorder that was at the heart of the popular 1992 movie 'Lorenzo's Oil'; the disease has stabilized in two boys, the researchers report. 900 words, by Thomas H. Maugh II (Times). 