Senators call web tracking 'creepy'

They may only be web ads that pop up for days after you visit a website to research information, but some U.S. senators are worried about the tracking and behavioral profiling behind them.

"I am a little spooked out," said Sen. Claire McCaskill, D-Mo., during a hearing of the Senate Commerce Committee into privacy issues. "This is creepy."

"We [in becoming public officials] signed up for an invasion of privacy. But as the American people find out about this [behavioral tracking], they are going to be very unhappy.

Sen. Byron Dorgan, D-N.D., said web tracking defies all normal standards for conduct.

"If someone followed you [everywhere] taking copious notes on what you do, anyone would find that is unbelievable. Yet that is happening every day on the internet."

Sen. John Kerry, D-Mass., also said he is hearing concern from constituents.