"Unless something changes, I don't think they will be charged" in the terrorism investigation.
The terrorism investigation has led to proceedings against more than 560 people.
The authorities would also be able to look at tax returns in terrorism investigations.
Prosecutors said they were keeping some evidence secret to protect terrorism investigations.
But in the midst of the terrorism investigation, that bill is languishing.
The meeting was also considered extraordinary because European countries do not often work together on complex terrorism investigations.
He contended that local authorities could be of critical help to terrorism investigations.
Congress, which has given the administration many new powers to conduct terrorism investigations, needs to judge whether this was what it had in mind.
About half of all former material witnesses in terrorism investigations have since left the country, sometimes voluntarily, often not.
Soon after raising his complaints about the 2002 terrorism investigation, he was removed from the case.