In the past, you've tackled some difficult subject matters in your award-winning Hannah Vogel mysteries set in Germany between the two world wars. In your new series, the story is set in modern-day Manhattan. Can you share the pros and cons between writing "historical mysteries" versus a "modern-day thriller"?
With the historical mysteries, you have the benefit of hindsight--you know what the characters are going to face in the world and how it's going to come out. History provides so many wonderful plots and subplots and fascinating details. The difficulty is that you can't visit the past, so it's much harder to create a world of smells, tastes, sights, and even emotions that fit into an era. So, it's a different kind of research (one that I love, obviously).
With the modern thrillers, I can visit many of the places that Joe calls home--the tunnels of the New York subway, Grand Central Station, the Grand Hyatt and take a look around to see what he might notice (or might overlook).