So notorious did the participation of Americans in the traffic become, that President Madison informed Congress in his message, December 5, 1810, that "it appears that American citizens are instrumental in carrying on a traffic in enslaved Africans, equally in violation of the laws of humanity, and in defiance of those of their own country. The same just and benevolent motives which produced the interdiction in force against this criminal conduct, will doubtless be felt by Congress, in devising further means of suppressing the evil."[71] The Secretary of the Navy wrote the same year to Charleston, South Carolina: "I hear, not without great concern, that the law prohibiting the importation of slaves has been violated in frequent instances, near St. Mary's."[72] Testimony as to violations of the law and suggestions for improving it also came in from district attorneys.[73] The method of introducing Negroes was simple. A slave smuggler says: "After resting a few days at St. Augustine, ... I agreed to accompany Diego on a land trip through the United States, where a _kaffle_ of negroes was to precede us, for whose disposal the shrewd Portuguese had already made arrangements with my uncle's consignees. I soon learned how readily, and at what profits, the Florida negroes were sold into the neighboring American States. The _kaffle_, under charge of negro drivers, was to strike up the Escambia River, and thence cross the boundary into Georgia, where some of our wild Africans were mixed with various squads of native blacks, and driven inland, till sold off, singly or by couples, on the road. At this period [1812], the United States had declared the African slave trade illegal, and passed stringent laws to prevent the importation of negroes; yet the Spanish possessions were thriving on this inland exchange of negroes and mulattoes; Florida was a sort of nursery for slave-breeders, and many American citizens grew rich by trafficking in Guinea negroes, and smuggling them continually, in small parties, through the southern United States. At the time I mention, the business was a lively one, owing to the war then going on between the States and England, and the unsettled condition of affairs on the border."[74]