Before revision: On May 5, 2006, a group of higher education and library organizations led by the American Council on Education (ACE) challenged that ruling, arguing that the FCC's interpretation of CALEA was unconstitutional under the Fourth Amendment .
After revision: On May 5, 2006, a group of higher education and library organizations led by the American Council on Education (ACE) challenged that ruling, arguing that the FCC's interpretation of CALEA did not apply to them .