On May 1st, the activists who brought you thousands of Mexican flags flying in marches down the streets of our cities are now bringing you "Nothing Gringo Day". With help from the Mexican government, Mexican unions, Mexican political groups, and through the Spanish language radio and newspapers, the call has gone out to make America experience a total boycott, both here and in Mexico. Talk about biting the hand that feeds you. Just the word "boycott" sparks the image of noble dissent in the face of economic or social oppression. I think of American colonials bucking British economic interests in...