Customs and Border Protection has purchased 10 drones since 2005 to hunt down illegal immigrants, ABC 10 News reports.
The Predator drones helped track down nearly 4,000 illegal immigrants and nine tons of marijuana, ABC News reported, citing records obtained under the Freedom of Information Act.
The local ACLU said drones pose threats to privacy rights.
“All of this has happened without important questions being asked. A lot of our movements may be captured by these drones without us knowing where that information is going,” said Sean Riordan, staff attorney for the San Diego chapter of the ACLU.
