The U.S. Navy has far more mitigation procedures to prevent environmental damage in the present day than they did in the 1960s. In compliance with the National Environmental Policy Act of 1969 they prepared an Environmental Impact Statement. However, the Navy could not guarantee that no bird protected by the MBTA would be killed, despite the precautions. The Fish and Wildlife Service could not grant a permit without such a guarantee, and no permit has been issued. The Navy argued that it had done its best to comply with environmental laws, and should be permitted to operate under the Impact Statement prepared for NEPA. Vice Speaker Joseph P. DeLeon Guerrero, R-Saipan, noted that the U.S. military "is thorough and meticulous in monitoring the impact of the bombing " on Farallon de Medinilla.