Sam Tanenhaus interviewed the author for the New York Times' Book Review podcast's 3/27/09 episode (first 6 Minutes). Tower talks about how he came across the unforgettable foot detail (Minute 1:50) that he uses in one of the modern-day stories. He also reads the ending of the "Everything Ravaged, Everything Burned" story (Minute 4), so save this interview until after you've listened to the Guardian podcast, unless you like your stories spoiled.
Pillage and Publish
The New Yorker online has a print interview (no audio) with Tower, in which he discusses his research into the Vikings' "most ugly bits," the drastic editing changes he made to his stories after he sold the collection (talk about guts), and his literary influences. On a separate web page he talks about his Updike-like separation of fiction & nonfiction workspaces (photos here). The complete text of his story "Leopard," which is quite tame compared to the Vikings, is also available at the New Yorker's site.