...Act and if the Commissioner, in the exercise of his discretion, concludes that such inadmissibility is based on information of a confidential nature the...to the public interest, safety, or security, he may (1) deny any hearing or further hearing by a special inquiry officer and order such alien excluded...

...threat to the internal security of the United States. Under the law, if it is determined on the basis of information of a confidential nature, the disclosure...prejudicial to the public interest, safety or security, that the individual's entry would be or would likely be a security threat, further inquiry into the...