The Do Not Call list initially worked beautifully. But the number of complaints about junk calls have been skyrocketing lately. Business Week reports that’s because companies have found a loophole in the law. This method is totally legitimate. Basically, in the fine print of sweepstakes entries you agree to receive junk phone calls. The FTC agrees that if you sign, then you waive your right not to be called. This whole phenomenon reminds Clark of a TV report he did years ago when he set up a car in a mall with a sign encouraging people to enter to win the car. Hundreds of people entered and gave sensitive personal information. The entry form explained clearly -- not in mice-type -- that people were entering for nothing, there was actually no prize and the amount of info they gave would be enough for an ID thief to work with. Clark was hidden down a corridor and would ask people after they signed up if they knew what they did. Almost everyone just thought they were entering for the free car. But one man ran back to the car display and tore open the entry box trying to get his entry form back. Sometime we all let our guard down and give too much info. So beware of businesses trying to pierce your privacy with sweepstakes entry forms.