That's been able to be accomplished since the beginning of cell phones, nothing new there.
There is a reason one doesn't have a cell phone on them in secure locations. If you don't want anyone to hear your conversation (besides the person you are talking to face to face), don't have a cell phone present.
To those of us who've had our eyes open for many years, not a single one of the recent revelations are the least bit surprising. It's the nature of the state to abuse power. Give a power to the state and it will be abused, sure as shootin.
"Itâ€™s the usual Christophobic fifth column rooting for the Islamization of the West." - Ann Coulter
Cell phone users, beware. The FBI can listen to everything you say, even when the cell phone is turned off. A recent court ruling in a case against the Genovese crime family revealed that the FBI has the ability from a remote location to activate a cell phone and turn its microphone into a listening device that transmits to an FBI listening post, a method known as a "roving bug." Experts say the only way to defeat it is to remove the cell phone battery. "The FBI can access cell phones and modify them remotely without ever having to physically handle them," James Atkinson, a counterintelligence security consultant, told ABC News. "Any recently manufactured cell phone has a built-in tracking device, which can allow eavesdroppers to pinpoint someone’s location to within just a few feet," he added.
The FBI appears to have begun using a novel form of electronic surveillance in criminal investigations: remotely activating a mobile phone's microphone and using it to eavesdrop on nearby conversations.
The technique is called a "roving bug," and was approved by top U.S. Department of Justice officials for use against members of a New York organized crime family who were wary of conventional surveillance techniques such as tailing a suspect or wiretapping him.
Nextel cell phones owned by two alleged mobsters, John Ardito and his attorney Peter Peluso, were used by the FBI to listen in on nearby conversations. The FBI views Ardito as one of the most powerful men in the Genovese family, a major part of the national Mafia.
The surveillance technique came to light in an opinion published this week by U.S. District Judge Lewis Kaplan. He ruled that the "roving bug" was legal because federal wiretapping law is broad enough to permit eavesdropping even of conversations that take place near a suspect's cell phone.
Kaplan's opinion said that the eavesdropping technique "functioned whether the phone was powered on or off." Some handsets can't be fully powered down without removing the battery; for instance, some Nokia models will wake up when turned off if an alarm is set.