The term 'MAJOR RACKET' can be broken down into two crossword solutions: DIN and 3 letters. DIN stands for Deutsches Institut für Normung, which is a German standards organization that develops technical standards to ensure quality, safety, and efficiency in products and services. The 3 letters refer to the ISO 3166-1 alpha-3 code for Germany, which is DEU. Together, these two solutions indicate that MAJOR RACKET is related to Germany in some way.