From Hillicon Valley:
She said the Google officials gave lawmakers a "thorough walkthrough of the technology that exists" to control privacy settings, but that she remains concerned about users' ability to control the information they share with Google.
"The concern of Congress is how much active participation does a user have to do to protect their own privacy," she said.
There are similar concerns in Europe where EU regulators want Google to put a freeze on rolling out the new policy. They say they want more time to go over it and really understand it.