In March 2009, "CyClone Dairy" launched an advertising campaign and a website to promote its milk products, which purportedly came exclusively from cloned cows. On April 1, 2009 (April Fool's Day), Ben & Jerry's announced that it was behind this fake company. Ben & Jerry's had created the tongue-in-cheek hoax to raise awareness of the increasing presence of products from cloned animals within American food and to campaign for a tracking system of cloned-animal products. The hoax was revealed on April Fool's Day with the message: "We believe you should have the right to choose which foods you eat – and not to eat cloned foods if you don't want to. And that's why Ben & Jerry's believes we need a national clone tracking system, so people and companies can know where their food is coming from."