Luke TaylorAuthor affiliationsUS immigration agents are using an app developed by Palantir that draws on the health records of millions of Americans to find and detain illegal immigrants.The revelation comes as the US’s Immigration and Customs Enforcement (ICE) comes under increased scrutiny after the shooting of Alex Pretti, a 37 year old intensive care nurse, by ICE agents in Minneapolis over the weekend.It has now emerged that data from the Department of Health and Human Services (HHS) is bei...