In February of 2017, Susan Fowler wrote a blog post about her "very strange year" as an engineer at Uber. She detailed sexual harassment, retaliation for reporting it, and an overall hostile work environment. Millions of people read the blog, and Uber opened an investigation that ultimately led to the resignation of former CEO Travis Kalanick. Now, she's written a memoir called "Whistleblower" about what led her to stand up to one of the most powerful startups in Silicon Valley.