billions to put privacy first. users liked that, investors didn't. >> facebook just suffered the biggest single-day loss for any public company in history. >> in one day, facebook lost $119 billion in market value. tackling its problems will cut into facebook's profits for years to come. but the company says it's necessary to improve its platform and regain our trust. >> richard, christine, thanks so much. newsroom with dana bash starts right after this. like sweaty od. yup, he's gone noseblind. he thinks it smells fine, but his mom smells this... luckily for all your hard-to-wash fabrics... ...there's febreze fabric refresher. febreze doesn't just mask, it eliminates odors you've... ...gone noseblind to. and try febreze unstopables for fabric. with up to twice the fresh scent power, you'll want to try it... ...again and again and maybe just one more time.