The Trump administration is forging ahead with a plan that is sure to fuel alarm across California's immigrant communities: handing over the personal data of millions of Medicaid recipients to federal immigration officials who seek to track down people living in the U.

The immigration agency will use Medicaid data to identify and locate people it believes are in the country unlawfully.

A new agreement viewed by WIRED gives ICE direct access to a federal database containing sensitive medical data on tens of millions of Americans, with the goal of locating immigrants.