Advertising against a tragic event is a delicate calculation for American companies. Do they acknowledge the occasion and invite accusations of being opportunistic? Do they stay silent and risk appearing out of touch or unpatriotic? What is the border between commemoration and commercialization?On Saturday, during a break in an afternoon football game, Budweiser will mark the 20th anniversary of the Sept. 11 terrorist attacks with a commercial showing a team of Clydesdale horses pulling a red Budweiser-branded wagon across the Brooklyn Bridge and down a cobblestone street of Lower Manhattan. In the final image, the horses, standing on the grass …
