Most of us are concerned about the lack of privacy online, but we're not sure what we can do about it. Nine in 10 Americans believe they have no control over their personal information, how it is collected and how it is used by companies, according to a new Pew Research Center survey.

The building opens Monday, when the first tenant, Conde Nast, moves in. The publisher moves its 3,400 staffers into the 24 stories it is occupying, from floor 20 through 44.