Given the task definition and input, reply with output. In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.

passage: United States v. Carolene Products Company, 304 U.S. 144 (1938), was an April 25, 1938 decision by the United States Supreme Court. The case is famous for its ''Footnote Four'' in which the Court established the system of heightened scrutiny for laws targeting ''discrete and insular minorities,'' compared with the lower scrutiny applied for economic regulations, as in this case.
question: footnote 4 of united states v. carolene products co. identifies areas where?
No