公安部：中美两国禁毒部门积极开展禁毒合作，取得了显著成效，还就多起案件开展联合侦办

Group 1 - The core viewpoint is that China and the United States have made significant progress in drug control cooperation following the meeting between the two heads of state in Busan [2] - Both countries' drug control departments are actively implementing the important consensus reached during the Busan meeting and have achieved notable results [2] - There has been close communication and collaboration between the cross-departmental drug control working teams of both countries, including recent video meetings to discuss work progress and future cooperation priorities [2]