Palantir co-founder on its mission and controversies

Palantir Technologies today went public at an initial valuation of over $21 billion, giving investors a chance to buy into one of Silicon Valley's most talked-about tech companies. Dan and Palantir co-founder Joe Lonsdale dig into Palantir's mission and why it's so controversial. Learn more about your ad choices. Visit megaphone.fm/adchoices