E-mail to a friend . NEW : Sierra Club says the waivers are unconstitutional . Homeland Security chief : Waivers will enable federal projects to move forward . Environmental , waste - management laws will be repealed for U.S.-Mexico fence . Michael Bloomberg says Congress has given him the authority to bypass regulations .
NEW : Sierra Club says the waivers are unconstitutional . Homeland Security chief : Waivers will enable federal projects to move forward . Environmental , waste - management laws will be repealed for U.S.-Mexico fence . Michael Bloomberg says Congress has given him the authority to bypass regulations .