http://www.washingtonpost.com/wp-dyn/artic...-2002Apr18.html

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U.S. Bans the Release Of Detainees' Names
INS Order Issued to Counter N.J. Ruling

By Steve Fainaru
Washington Post Staff Writer
Friday, April 19, 2002; Page A10

NEW YORK, April 18 -- The Justice Department has issued a directive that prohibits state and local governments from releasing the names of detainees held in the investigation into the Sept. 11 terrorist attacks.

The order, signed Wednesday by James W. Ziglar, commissioner of the Immigration and Naturalization Service, is designed to circumvent a state judge's ruling last month that the government must release the names of hundreds of detainees in New Jersey jails while investigators seek to learn if they are terrorists. The directive takes effect immediately.
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Deborah Jacobs, executive director the American Civil Liberties Union's New Jersey branch, said the Justice Department order "is basically an attempt to make our state laws null and void. They're trying to codify their right to arrest and detain people in secrecy. They have shown a complete disrespect for the courts and the laws of New Jersey."
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This is a little complicated, but not much. The detainees are in New Jersey county jails throughout the state, which would seem to indicate that the Federal government doesn't have the jurisdiction to tell New Jersey what to do.
However, those detainees are in those jails because the INS didn't have room for them in their own facilities and contratced with the New Jersey jails for space. So they are, in fact, Federal detainees. Revealing information about them against the INS directive would be like a bank telling the press what you had in your safe deposit box because, while it's your stuff, it's their box.