Operation Intercept was launched along the United States-Mexico border in September of 1969, ostensibly to halt the flow of marijuana, heroin, and dangerous drugs. In reality, however, it was designed not to interdict narcotics but to publicize the new administration's war on crime and force Mexican compliance with Washington's antidrug campaign. With the exception of border residents, the much-heralded operation has been forgotten by most Americans a decade later. But as President Jimmy Carter discovered during his visit in early 1979, Mexicans, and particularly their presidents, have keen memories. Hastily conceived, unilateral programs such as Operation Intercept go far in explaining why.