The information is not just metadata – depersonalized analytical usage statistics that allow spies to spot patterns – but includes almost all types of personal information. Using any piece of personal data on a subject – an email address, or the IP address of a computer – an agent could look up all online user activities, such as Google map searches, website visits, documents sent through the internet or online conversations. The service operates both, in real time, and using a database of recently stored information.All that appears to have been necessary to log into the system is to fill in a compulsory line on a form that gave a reason for why a certain person needed to be investigated. The form was not automatically scanned by the system or a supervisor, and did not require a US legal warrant, as long as the person whose name was typed in was a foreigner (even if his interactions were with a US citizen).