Federal officials are routinely asking courts to order cellphone companies to furnish real-time tracking data so they can pinpoint the whereabouts of drug traffickers, fugitives and other criminal suspects, according to judges and industry lawyers.

In some cases, judges have granted the requests without requiring the government to demonstrate that there is probable cause to believe that a crime is taking place or that the inquiry will yield evidence of a crime. Privacy advocates fear such a practice may expose average Americans to a new level of government scrutiny of their daily lives.

A former technician at AT&T, who alleges that the telecom forwards virtually all of its internet traffic into a “secret room” to facilitate government spying, says the whole operation reminds him of something out of Orwell’s 1984.

The Prince Group, the holding company that owns Blackwater Worldwide, has been building an operation that will sniff out intelligence about natural disasters, business-friendly governments, overseas regulations and global political developments for clients in industry and government.

Because of its roster and its ties to owner Erik Prince, the multimillionaire former Navy SEAL, the company’s thrust into this world highlights the blurring of lines between government, industry and activities formerly reserved for agents operating in the shadows.

Powerful supercomputers are vacuuming up so much information that logs of calls to or from innocent Americans could exist in government databases indefinitely, the nation’s top intelligence official said Tuesday.

An untold number of communication logs on US citizens could exist within a NSA database of information gained through warrantless wiretaps of foreigners abroad, McConnell said, because NSA spies do not examine the full contents on all the information it collects until it has a reason to do so.

The FBI has quietly built a sophisticated, point-and-click surveillance system that performs instant wiretaps on almost any communications device, according to nearly a thousand pages of restricted documents newly released under the Freedom of Information Act.

The surveillance system, called DCSNet, for Digital Collection System Network, connects FBI wiretapping rooms to switches controlled by traditional land-line operators, internet-telephony providers and cellular companies. It is far more intricately woven into the nation’s telecom infrastructure than observers suspected.