The dismissal of FTC suit against Facebook shows the difficulty of making antitrust charges stick and could spur lawmakers to strengthen outdated antitrust laws (Scott Rosenberg/Axios)

Scott Rosenberg / Axios:
The dismissal of FTC suit against Facebook shows the difficulty of making antitrust charges stick and could spur lawmakers to strengthen outdated antitrust laws  —  A federal judge's decisions Monday tossed out antitrust lawsuits against Facebook — and threw cold water on the heated campaign …