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'Geek Girl Rising' authors share secrets of the sisterhood shaking up tech

Silicon Valley's "bro" culture keeps making headlines these days. But a new book takes a more optimistic look at women in technology. It's called "Geek Girl Rising: Inside the Sisterhood Shaking Up Tech," and its two authors, Heather Cabot and Samantha Walravens, join Yahoo Finance's Jen Rogers to discuss.