How one entrepreneur's American dream shows social media's downside

9:00 AM ET Mon, 29 April 2019

Spreading like wildfire on social media is a dream for most companies, but for one company, it turned into a nightmare. FinalStraw, which makes an environmentally friendly straw, went viral online but the company soon found many posts were actually directing followers to buy knockoffs. As CNBC's Andrea Day reports, the company says its cost them millions.