Microsoft, Google and Nvidia are among the American tech companies that have pledged to expand in Britain.

© Benjamin Quinton for The New York Times

British authorities have ramped up the use of facial recognition, artificial intelligence and internet regulation to address crime and other issues, stoking concerns of surveillance overreach.

© Charlotte Hadden for The New York Times

Microsoft, Google and Nvidia are among the American tech companies that have pledged to expand in Britain.

© Benjamin Quinton for The New York Times