Why automakers are launching car-sharing programs
In April, BMW launched a car-sharing program in Seattle with plans to expand it to three more U.S. cities this year. GM and Daimler are also experimenting with their own versions, which is creating new questions for the industry and drivers. Tim Stevens, editor-in-chief of CNET's auto site Roadshow, joins "CBS This Morning" to discuss the evolving car-sharing industry.