San Francisco's much-lauded Hetch Hetchy tap water might have a problematic impurity for some city residents. As SFWeekly reports today, the water that SF Public Utilities Commission loves to brag about gets a healthy dose of UV light and chloramine treatment to bring it up to code before it pours forth from your faucets and fixtures, but the PUC doesn't filter out other impurities and microorganisms that could cause health problems for those with compromised immune systems. From the Weekly's report: more ›

In 1987, at the height of the AIDS epidemic, the Department of Health and Human Services added HIV to the list of communicable diseases that barred tourists and travelers from entry into the U.S. In 1993, Congress went further to list HIV-positivity as the only medical condition listed as grounds for inadmissibility for immigration into the country, and therefore no major AIDS conference has taken place here ever since. more ›