Dave Davies

The British director speaks with Fresh Air's Dave Davies about his new film, Scott Pilgrim vs. the World, based on the graphic comic series by Bryan Lee O'Malley. Wright also directed the parody romantic zombie film Shaun of the Dead and the British TV sit-com, Spaced.

It's not unusual to get in a cab and find a paperback novel on the seat next to the driver. What makes Jack Clark's cab different is that he's both the driver and the author. Clark is a Chicago cab driver who's been driving for 30 years — and written three mystery novels.

Nearly all of the most commonly visited websites install invisible tracking software on your computer so the information can be sold to advertisers. Julia Angwin, who recently led a team of Wall Street Journal reporters investigating the practice, explains what companies do with the information -- and how you can protect your privacy online.