On Tuesday, the U.S. Court of Appeals for the D.C. Circuit ruled that the FCC lacks the authority to regulate Internet service providers' network management practices. The unanimous decision by a three-judge panel immediately throws into question the FCC's ability to require Internet providers to treat all network traffic equally (a concept known as "net neutrality"). The ruling may also hinder the FCC's efforts to move forward with key aspects of its National Broadband Plan for expanding high-speed Internet service nationwide.