In the MRVICA v. ESPERDY case of 1963, George Mrvica, a Yugoslavian immigrant and naturalized U.S. citizen was threatened with denaturalization by the Immigration and Naturalization Service (INS) due to alleged misrepresentation during his naturalization process in 1951. The INS claimed that Mrvica had concealed his service in the German military during World War II when applying for citizenship. However, he argued that this information was not relevant to his eligibility for citizenship as it occurred before he immigrated to America. The Supreme Court ruled against Mrvica stating that any deliberate concealment or misrepresentation made during the naturalization process could be grounds for revocation of citizenship regardless of whether it directly affected eligibility criteria or not. This ruling set a precedent emphasizing honesty and full disclosure in immigration proceedings.

In the dissenting opinion for MRVICA v. ESPERDY, it was argued that the majority's decision to deport Mrvica based on his membership in a Communist organization before he became a U.S citizen was unjust and contrary to American principles of fairness. The dissenting justices believed that Mrvica should not be punished for actions taken prior to becoming an American citizen, especially since there was no evidence suggesting he continued such affiliations after naturalization. They also pointed out that during his naturalization process, Mrvica had fully disclosed his past memberships and activities with communist organizations which were deemed legal at the time of disclosure by immigration officials who granted him citizenship. Therefore, they felt it unfair and contradictory to now use this information against him years later as grounds for deportation. Furthermore, they expressed concern over how this ruling could potentially impact other immigrants who may have been involved in controversial groups or activities prior to their naturalization but have since become law-abiding citizens contributing positively towards society.