Kate Brown, associate professor of history, is giving a series of talks that are taking her across the country. Brown studies and teaches Russian and Eastern European history, and is an expert on the history of nuclear disasters. Stops along her tour include: On February 9, she spoke on “The Plutonium Curtain: Plutonium’s role in making model cities and the nuclear security state during the Soviet-American Cold War” at New York University. On April 18, she will give the Sweet Professorship Lecture “Touched: Plutonium’s role in the making of nuclear families and lethal landscapes in the US and USSR” at …