<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjQtMDkvMDE5MWY3ZWYtOGQyZi03ZWFlLWJlYzctOGMwMGQwMzI3ODYw.jpg"></p><p>The US commodities regulator says prediction markets can be vulnerable to “spectacular manipulation.”</p>