Cell Phone Tracking

Cell phone location-tracking, attracts scrutiny on Capitol Hill. Representative Ed Markey and Senator Al Franken write to Apple. They want to know more about why the company collects a database full of information on the movements of iPhone users. Apple isn't alone. Phones using Google's Android operating system also transmit their locations back to the company. Both efforts appear aimed at helping the companies gain a foothold in the market for location-based services. That market is worth nearly $3 billion a year now, and it's growing.