; (B) flight from prosecution; (C) destruction of or tampering with evidence; (D) intimidation of potential witnesses; or (E) otherwise seriously jeopardizing an investigation or unduly delaying a trial. (3) Extension Upon request by a governmental entity, a court may grant one or more extensions of an order granted under paragraph (2) of not more than 90 days. (4) Notification of changed circumstances Upon conclusion of the investigation for which a warrant, order, subpoena, or other directive under section 2703 was sought, or if the need for the nondisclosure order under subparagraph (2) ceases to exist, the governmental entity that requested the nondisclosure order shall, within a reasonable period of time, notify the court of the changed circumstances so that the nondisclosure order can be reassessed or vacated. (5) Exception A provider of electronic communication service or remote computing service to which an order under subsection (b)(2) applies, or officer, employee, or agent thereof, may disclose information otherwise subject to any applicable nondisclosure requirement to— (A) those persons to whom disclosure is necessary in order to comply with the request; (B) an attorney in order to obtain legal advice or assistance regarding the request