(ii)
who the Secretary of State and the Attorney General jointly determine—
(I)
is in possession of critical reliable information concerning a terrorist organization, enterprise, or operation;
(II)
is willing to supply or has supplied such information to Federal law enforcement authorities or a Federal court;
(III)
will be or has been placed in danger as a result of providing such information; and
(IV)
is eligible to receive a reward under section
2708
(a) of title
22,
and, if the Attorney General (or with respect to clause (ii), the Secretary of State and the Attorney General jointly) considers it to be appropriate, the spouse, married and unmarried sons and daughters, and parents of an alien described in clause (i) or (ii) if accompanying, or following to join, the alien;