Merger Monday! Discovery Communications seals a $14.6 billion deal with Scripps Interactive. Jason Moser and Taylor Muckerman analyze Discovery\u2019s opportunities for international growth. Snap\u2019s lockup period expires, sending trading volume through the roof. But while Snap\u2019s stock remains flat, the upcoming earnings report bears watching.\xa0 Plus, we dip into the Fool Mailbag to discuss Costco\u2019s marketing push with....Groupon??