The US Secretary of Commerce has issued a directive that restricts the use of modern techniques for preserving privacy in large datasets, including differential privacy, in favor of outdated methods from the 1970s. This move has been criticized by experts in the field, who argue that it will compromise the confidentiality of respondents' data and undermine the quality of federal statistics. The directive is seen as a political move, driven by interests that want to use census data to target non-citizens and promote conspiracy theories. The authors of the article call on the scientific community to speak out against the directive and advocate for the use of evidence-based methods for protecting data privacy.