Now Playing: Wells Fargo computer glitch led to foreclosures

Now Playing: Amazon announces new headquarters in New York City, Virginia

Now Playing: Amazon chooses New York City, Virginia as locations for new headquarters

Now Playing: Amazon to announce new headquarters in New York City, Virginia

Now Playing: The Briefing Room: Jay Carney on why Amazon chose to do a sweepstakes for its HQ2

Now Playing: The Briefing Room: Jay Carney explains rationale behind new Amazon HQ locations

Now Playing: Going cash-free is making more sense for consumers, businesses

Now Playing: Google employees stage worldwide walkouts

Now Playing: Amazon offering free holiday shipping to everyone

Now Playing: Dow dragged down by Target, tech shares

Now Playing: Woman in GoFundMe scam says she's the victim

Now Playing: Black Friday shopping tips

Now Playing: What is the Fed?

Now Playing: Marriott says data breach may affect up to 500 million Starwood hotel guests

Now Playing: Budget airline files for bankruptcy, hundreds of passengers stranded

Now Playing: Dow Jones closes down more than 800 points

Now Playing: Stock market plunges, negative for the year

Now Playing: New York sues ExxonMobil for misleading investors

Now Playing: Dow plunges another 500 points, massive sell-off extends into 2nd day

Now Playing: Sears files for Chapter 11 bankruptcy protection