Lewis Shiner’s latest novel is a blend of historical fiction, romance and crime, and it all revolves around tango. Protagonist Rob Cavenaugh is a recent transplant to Buenos Ares. On the dance floor, he falls in love, but his relationship exposes him to Argentina’s dark history. Thousands of citizens disappeared in the country’s dirty war, and Rob’s new crush was somehow involved. Host Frank Stasio talks with Shiner about his new novel, "Dark Tangos" (Subterranean Press/2011).