Who's watching how you browse the web - and what do they know about you? Aggregators of data can piece together a profile of you from your browsing habits (two such services tagged one member of the Science Friday staff as being interested in Health & Medicine, News, and Science and Mathematics, in a business that involves media, with a penchant for electronics and exotic foods.) How does that tagging happen - and should it? We'll talk about privacy on the internet and calls for a 'do not track' function in web browsers. Plus, how much information do you unknowingly 'leak' about yourself in your daily activities online?
Produced by Christopher Intagliata, Senior Producer