(Image credit: SimpleImages via Getty Images) In a major victory for cable companies and telcos that raises concerns about the Federal Communications Commission's regulatory authority in the wake of recent U.S. Supreme Court rulings, the 6th U.S. Circuit Court of Appeals has struck down the agency’s net neutrality rules.The rules require broadband operators to treat all internet traffic equally and banned them from giving preferential treatment to some sites by speeding up or slowing down consum...