This article explores the scientific fraud case of the South Korean stem cell scientist Woo-Suk Hwang, which represents a struggle over political identity. The South Korean state supported Hwang’s research hoping to establish Korean scientific-technological leadership in biotechnology, but it combined this globalization strategy with an identity politics built around the Korean people. The emerging bionationalism exceeded traditional ethnic nationalism insofar as the traditional ethnicity marker of ‘‘blood’’ was displaced by biologically scientifically grounded notions such as the stem cell or (...) the oocyte. These new biological markers defined national identity and embedded the transformative potential of modern biomedicine to be put into the service of Korean bodies and the nation’s economic future. Bionationalistic mobilization became hegemonic in South Korea in 2000 and undermined the democratic process, giving rise to violations against core principles of good governance. This bionationalistic narrative was challenged by an attempt to define political identity through the ideas of political citizenship, liberal democracy, and participation. The South Korean government has terminated its bionationalistic mobilization, but the struggles over Hwang and Korean identity linger. (shrink)