; and (ii) is made readily accessible to minors by the failure of such provider or user to implement a system designed to effectively screen users who are minors from accessing such content, to the extent feasible using technology available at the time of such distribution. (D) Period of loss of immunity For purposes of subparagraph (A), (B), or (C), a period described in this subparagraph is— (i) any 1-year period beginning on the date on which the provider engages in conduct described in such subparagraph; or (ii) in the case of such conduct that continues for more than 1 day, any 1-year period beginning on the date on which the provider ceases such conduct. (E) Rule of construction This paragraph shall be broadly construed to advance the purposes of this section for the deployment of new technologies and policies to block or filter offensive content such as indecency, obscenity, pornography, or sexually explicit content so as to prevent any such content from being readily accessible to minors. (4) Exception for stifling free expression (A) In general Paragraphs (1) and (2)(A) shall not apply to a provider of an interactive computer service that is in the business or practice of communicating user-generated content during any period during which such provider— (i) is dominant in its market