both sides of the aisle want answers, chief congressional correspondent has more. the irs is concerned irs secret cell phone tracking systems. irs commissioner was asked about it at a senate finance committee hearing this week. i would stress it follows the justice department rules, it requires a court order and it requires probable cause with regard to criminal investigations. it is not used in civil matters at all. it s not used by other employees of the irs. how frequently are irs criminal investigators obtaining location data about the people they investigate? i ll have to get you that information. the guardian reported that the irs had spent $71,000 to upgrade the technology known as cell site simulators. part of the money was designed for the tax collection agency to receive training from the company that manufactures the equipment. it raises the attention of