Who’s in town Best-selling author George R.R. Martin talks about “A Dance With Dragons,” the fifth novel in his epic-fantasy series, “A Song of Ice and Fire.” [7 p.m., Fox Theatre, 2215 Broadway, Redwood City]Lectures Health care costs: Speakers explore the high costs of health care and how that hurts the people most in need. [6 p.m., Commonwealth Club, 595 Market St., S.F.] Read More