The ACLU published thousands of pages of previously unreleased records showing that the Department of Homeland Security (DHS) are sidestepping the constitutional right against unreasonable government search and seizure. DHS has been buying access to and using large volumes of cell phone location information that has been “quietly extracted from smartphone apps” of U.S. citizens and others — using their own tax dollars.
In 2018, the Supreme Court ruled in Carpenter v. United States that the government needs a warrant to obtain cell phone location information from people’s cellular service providers due to the “near perfect surveillance” such information provides. (ACLU)