A federal judge in Texas said Thursday that some Affordable Care Act mandates cannot be enforced nationwide, including those that require insurers to cover a wide array of preventive care services at no cost to the patient, including some cancer, heart and STD screenings, and tobacco programs. Some of the US Preventive Services Task Force’s recommendations – including lung and skin cancer screenings, the use of statins to prevent cardiovascular disease and the offer of PrEP for those at high risk of HIV – were issued after the ACA’s enactment. “There’s plenty of evidence that people responded to this incentive and started using preventive care more often,” said Paul Shafer, assistant professor of health policy at Boston University