Enlarge (credit: Aurich Lawson) Four U.S. Senators have sent a letter to Federal Trade Commission Chairwoman Lina Khan expressing concern about Microsoft’s proposed $68.7 billion acquisition of Activision Blizzard, according to a Wall Street Journal report. In the letter, Senators Elizabeth Warren (D-Mass.), Bernie Sanders (I-Vt.), Cory Booker (D-NJ), and Sheldon Whitehouse (D-RI) express worry […]