Many Americans are protesting the conviction of Amanda Knox by boycotting Italy—including prominent people like Donald Trump. Knox, who was convicted late last year of murdering her roommate Meredith Kercher with her boyfriend Raffaele Sollecito after a controversial trial, is readying for appeal. Knox supporters have taken to Facebook and Twitter to advance the boycott, but it’s probably not the best way to get the Italian’s attention. Boycotting is an American phenomenon, and besides, even if thousands of Americans stay away from Italy, their absence will barely register—the country is the No. 1 tourist destination in the world. And boycotting Italian products stateside will only hurt American businesses. The Italian justice system is more likely to respond to reasoned letters of protests delivered in person. If that’s out of the question, write letters and respectful blogs.