What does it take to become a citizen? An interview, a civics exam, and a lot of paperwork. But these challenges are worth it to those seeking a permanent home in the United States.Yana Cascioffe is the Citizenship program Coordinator at Baltimore City College, which runs classes across the state to prepare people for the naturalization process. Students study history, government and their English language skills.We hear from current students, as well as a Russian immigrant who became a citizen in May.