preemptive search based on chat talk

[Blank Frank]

``The severity of the threat was such that it required a preemptive
search. It's just not
             worth allowing something like this to happen where there is
probable cause to
             believe it will. I say there was probable cause because a
federal search warrant was
             signed regarding this matter,'' McLaughlin said.

http://dailynews.yahoo.com/h/nm/20010114/wr/crime_dc_4.html