Modernize Diplomatic Security Training Act

This bill requires specific counterintelligence training for certain Diplomatic Security special agents. It mandates that agents assigned to primary counterintelligence roles or high-risk, high-threat diplomatic posts must complete mandatory training provided by the State Department's Office of Counterintelligence. The training is a new requirement added to the 1986 Diplomatic Security Act, applying only to agents in these defined positions. The law directly affects those Diplomatic Security special agents working in counterintelligence or high-risk locations.