; or (ii) the Secretary, in the Secretary’s sole and unreviewable discretion, determines that removal of the alien is in the national security, public safety, or foreign policy interest of the United States. (8) Security and law enforcement clearances (A) Biometric and biographic data The Secretary may not grant contingent nonimmigrant status to an alien under this section unless such alien submits biometric and biographic data in accordance with procedures established by the Secretary. (B) Alternative procedures The Secretary may provide an alternative procedure for applicants who cannot provide the biometric data required under subparagraph (A) due to a physical impairment. (C) Clearances (i) Data collection The Secretary shall collect, from each alien applying for status under this section, biometric, biographic, and other data that the Secretary determines to be appropriate— (I) to conduct national security and law enforcement checks; and (II) to determine whether there are any factors that would render an alien ineligible for such status. (ii) Additional security screening The Secretary, in consultation with the Secretary of State and the heads of other agencies as appropriate, shall conduct an additional security screening upon determining, in the Secretary’s opinion based upon information related to national security, that an alien is or was a citizen or resident of a region or country known to pose a threat, or that contains groups or organizations that pose a threat, to the national security of the United States. (iii) Prerequisite The required clearances and screenings described in clauses (i)(I) and (ii) shall be completed before the alien may be granted contingent nonimmigrant status. (9) Duration of status and extension The initial period of contingent nonimmigrant status— (A) shall be 3 years unless revoked pursuant to subsection (e); and (B) may be extended for additional 3-year terms if— (i) the alien remains eligible for contingent nonimmigrant status under subsection (b)