The Trump administration has retreated from a controversial plan for a national registry of people with autism just days after announcing it as part of a new health initiative that would link personal medical records to information from pharmacies and smartwatches.Subscribe for unlimited access to The PostYou can cancel anytime.SubscribeJay Bhattacharya, director of the National Institutes of Health, unveiled the broad, data-driven initiative to a panel of experts Tuesday, saying it would includ...