The main purpose of this legislation, known as the Counternarcotics Enhancement Act, is to improve collaboration and coordination between U.S. intelligence agencies and the Government of Mexico in combating drug trafficking and related issues. The goal is to create a more effective strategy to address the challenges posed by narcotics and enhance overall security for both countries. Key provisions of the Act require the heads of U.S. intelligence agencies to assess their current relationships with Mexican government entities and identify any counterintelligence risks.