This week on Sound Effect, the theme is “Playing Defense” — stories of protecting our turf. First, we travel to Whidbey Island to learn about massive forts that were built in the 1890s to protect Puget Sound from invading ships. Then, we hear the story of a gifted Thurston County boxer with a magnetic personality — and a weakness. We learn what it takes for students of color to thrive at a mostly white university. An evolutionary biology researcher helps us understand that, sometimes, viruses