His areas of interest include Modern U.S. and British Literature, Comparative Imperialisms, Marxism and Marxist Cultural Studies, and Postcolonial Theory. His book Unbecoming Americans: Writing Race and Nation from the Shadows of Citizenship, 1945-1960 (Rutgers University Press, 2012) sets out to recover the shadow narratives of un-American writers forged out of the racial and political limits of citizenship, and focuses on the Cold War-era criminalization of “un-assimilable” American citizens (from left-wing intellectuals and black radicals to racialized migrant laborers) through the denial and curtailment of citizenship and rights.