That same statute requires the Secretary of State to notify certain members of her Senate before making the designation, but she need not notify the groups in question. If complaint were to ensue, the designated groups can file a petition within 30 days, but the court can review only the administrative record that the Secretary has assembled, although the Government may also submit classified information that was used to make the judgment.

This particular case was based on the precedent of a previous one (Anti-Fascist refuge Committee v. McGrath (1951)), where the Attorney General designated certain organizations as Communist, and the appellants appealed on the grounds that the Fifth Amendment required the government to warn the organizations in question before publicly condemning them. Differences...

More so, examining the first two clauses, "foreign" and 'terrorist organization," the various records compiled by the Secretary indicate substantial support that both groups engage within terrorist activities as per the definition of the term, and these records, too, indicate belief that endeavors may be extended to breach safety of the U.S.A.
In that case, and drawing upon other precedents, the court concluded that petition for review of judgment was denied.

Reference

People's Moujahedin Organization of Iran v. United States Department of State

(182 F.3d 17) (D.C. Cir. 1999). Retrieved on 11/20/2011 from:

http://uniset.ca/other/cs5/182F3d17.html