President Barack Obama disembarks from Air Force One at Moffett Federal Airfield in Mountain View, California, on June 6, 2013. - 

Revelations about NSA collection of phone and online data has caused some Americans to change their habits. An example? A jump in the use of search engines that promise more privacy, such as Netherlands-based Ixquick

Will Oremus, who has been following this for Slate magazine, joins Marketplace Tech host Ben Johnson to discuss. Click on the audio player above to hear more.