People who took part in Saturday¡¯s mass ¡°No Kings¡± protest against President Donald Trump¡¯s administration may be targeted for federal government surveillance with a range of technology that could include facial recognition and phone hacking, civil libertarians said. ¡°No Kings¡± organizers expect 2,600 rallies across all 50 U.S. states. But the level of surveillance at protests and the type of technology in use is likely to be both location-specific and dependent on the police forces present, said Thorin Klosowski, a security and privacy activist with the Electronic Frontier Foundation, said Friday.

For instance, crowds in Washington, D.C., where anti-scale fencing has been erected around the White House complex, are likely to be surveilled differently than those in a small rural town.

¡°Under previous administrations, law enforcement surveillance of peaceful demonstrations was already commonplace and corrosive of free expression,¡± Ryan Shapiro, executive director of government transparency group Property of the People, said in an email Friday.