File No. 812.00/2665.
The Mexican Ambassador to the Secretary of State.
The Embassy of Mexico presents its compliments to the Department of State and asks that it be pleased to interpose its good offices to cause the local and Federal authorities of Arizona to tighten the vigilance they have been instructed to maintain for the observance of the neutrality laws of this country. From reports recently received by the Government of Mexico it is known that along the border line both in Arizona and California there abound men who are adherents of or sympathizers in the doctrines propagated by the Flores Magón brothers and who constitute a disturbing element ever ready to cover up or support every movement against the Mexican Government.
Washington, December 30, 1911.