Clandestine Surveillance

German engineers have created a camera no bigger than a grain of salt that could change the future of health imaging -- and clandestine surveillance.

The US government's clandestine PRISM Internet program exposed by Edward Snowden targets suspect email addresses and phone numbers but does not search for keywords like terrorism, officials said on Wednesday.

German engineers have created a camera no bigger than a grain of salt that could change the future of health imaging -- and clandestine surveillance.

The US government's clandestine PRISM Internet program exposed by Edward Snowden targets suspect email addresses and phone numbers but does not search for keywords like terrorism, officials said on Wednesday.