; and (ii) an order issued under paragraph (2) may not impose any additional obligation on, or require any additional action by, the entity. (E) Actions pursuant to court order (i) Immunity from suit No cause of action shall lie in any Federal or State court or administrative agency against any entity served with a copy of an order under this paragraph, or against any director, officer, employee, or agent thereof, for any act reasonably designed to comply with this subsection or reasonably arising from the order, other than in an action under paragraph (5). (ii) Immunity from liability Any entity served with a copy of an order under this paragraph, and any director, officer, employee, or agent thereof, shall not be liable to any party for any acts reasonably designed to comply with this subsection or reasonably arising from the order, other than in an action under paragraph (5), and any actions taken by customers of the entity to circumvent any restriction on access to the internet domain instituted pursuant to this subsection or any act, failure, or inability to restrict access to an internet domain that is the subject of a court order issued under paragraph (2) despite good faith efforts to do so by the entity shall not be used by any person in any claim or cause of action against the entity, other than in an action under paragraph (5). (5) Enforcement of orders (A) In general In order to compel compliance with this subsection, the Attorney General may bring an action for injunctive relief against any party served with a copy of a court order under paragraph (4) that knowingly fails to comply with the order. (B) Rule of construction The authority granted the Attorney General under subparagraph (A) shall be the sole legal remedy for enforcing the obligations under this subsection of any entity described in paragraph (4). (C) Defense (i) In general It shall be an affirmative defense in an action under subparagraph (A) that— (I) the defendant does not have the technical means to comply with the order without