Yammer's Sacks, Privco's Hamadeh on Facebook IPO

Feb. 1 (Bloomberg) -- David Sacks, chief executive officer of Yammer Inc., and Sam Hamadeh, CEO of PrivCo, talk about Facebook Inc.'s plan to raise $5 billion in an initial public offering. They speak with Cory Johnson on Bloomberg Television's "Bloomberg West." Emily Chang also speaks. (Source: Bloomberg)