What are "gray market" goods and what do they have to do with intellectual property?

Which type of intellectual property includes DVDs [of movies] and CDs [of music]?  Why do you think these are the most "pirated" goods often found in "black markets" around the world?

Which US federal government agency is responsible for interdicting "counterfeit" goods coming into the United States?

Can you discover one product or region that has products protected by "Geographic Indications"?  What is the intellectual property issue associated with your product or region? https://www.wipo.int/about-wipo/en/

Explain your answer