Facebook, Instagram and WhatsApp went down on Monday for several hours. Then, on Tuesday, whistleblower Frances Haugen, a former product designer at the company, appeared before Congress, saying Facebook puts profit over safety and asking lawmakers to step in. CEO Mark Zuckerberg posted a note on Tuesday night saying a lot of things, including the company does not put profit over safety. Let’s look ahead at how this week might change Facebook with Quality Assurance, where we take a second look at a big tech story. Marketplace’s Marielle Segarra speaks with Mike Isaac, a tech correspondent for The New York Times.