S.F. Syphilis Campaign Tones Down Ads Thu Jun 27, 7:06 AM ET By MARGIE MASON, Associated Press Writer SAN FRANCISCO (AP) - The San Francisco health department toned down its campaign to combat rising syphilis infections after the company that owns the city's bus shelters refused to display a male genitalia cartoon. Viacom Outdoor objected to the Healthy Penis 2002 ads on five bus shelters in the city's predominantly gay Castro District, saying they would offend children and families. But Dr. Jeffrey Klausner, head of the health department's sexually transmitted disease unit, said the $50,000 campaign comes at a...