-----Original Message-----
From: NIPC Watch [mailto:nipc.watch@private]
Sent: Tuesday, September 11, 2001 12:50 PM
To: daily@private; isacs@private
Subject: FBI NATIONAL THREAT WARNING SYSTEM - TERRORIST THREAT ADVISORY
Importance: High
MESSAGE FROM FBI COUNTERTERRORISM DIVISION, WASHINGTON, D.C.
NATIONAL THREAT WARNING SYSTEM--TERRORIST THREAT ADVISORY; TERRORIST
ATTACKS AGAINST MULTIPLE TARGETS IN NEW YORK CITY AND WASHINGTON, D.C.
THIS ADVISORY WILL REMAIN IN EFFECT UNTIL 10/11/01, AT WHICH TIME IT
WILL EXPIRE AUTOMATICALLY, UNLESS EXTENDED BY THE FBI.
ON THE MORNING OF 09/11/01, APPARENT TERRORIST ATTACKS OCCURRED AT
MULTIPLE SITES IN NEW YORK CITY AND THE WASHINGTON, D.C., METROPOLITAN
AREA. BETWEEN 0845 AND 0915 HOURS, PASSENGER AIRCRAFT ARE BELIEVED TO
HAVE IMPACTED THE TWIN TOWERS OF THE WORLD TRADE CENTER. AS A RESULT OF
THE IMPACT, RESULTING FIRES, AND POSSIBLY ADDITIONAL EXPLOSIONS IN THE
BUILDINGS, BOTH TOWERS COLLAPSED. CASUALTY LEVELS ARE BELIEVED TO BE
VERY HIGH. SHORTLY AFTER THE ATTACKS ON THE WORLD TRADE CENTER, A
PASSENGER AIRCRAFT CRASHED INTO THE PENTAGON IN ARLINGTON, VIRGINIA.
LOW-TO-MODERATE CASUALTIES ARE BELIEVED TO HAVE RESULTED FROM THE ATTACK
ON THE PENTAGON. ADDITIONALLY, AN AIRCRAFT HAS CRASHED AT SHANKSVILLE,
PENNSYLVANIA; THIS CRASH IS APPARENTLY RELATED TO THESE ATTACKS. THE
FBI IS INVESTIGATING WHETHER THE AIRCRAFT INVOLVED IN THESE INCIDENTS
HAD BEEN HIJACKED.
AS A RESULT OF THESE ATTACKS AND UNFOLDING EVENTS, THE FBI IS ISSUING A
TERRORIST THREAT ADVISORY EFFECTIVE THROUGH 10/11/01, AT WHICH TIME THE
ADVISORY WILL EXPIRE UNLESS EXTENDED BY THE FBI.
THE FBI HAS NO INFORMATION OF ANY ADDITIONAL SPECIFIC THREATS DIRECTED
AGAINST ADDITIONAL TARGETS OR CRITICAL INFRASTRUCTURES IN THE UNITED
STATES; HOWEVER, INFRASTRUCTURE OWNERS AND OPERATORS SHOULD BE AT A
HEIGHTENED STATE OF ALERT AND SHOULD IMPLEMENT APPROPRIATE SECURITY
MEASURES--BOTH PHYSICAL AND CYBER.
THE FBI HAS ACTIVATED ITS STRATEGIC INFORMATION AND OPERATIONS CENTER
{SIOC} AT FBI HEADQUARTERS IN WASHINGTON, D.C. ADDITIONAL INFORMATION
REGARDING THESE EVENTS WILL BE DISSEMINATED AS APPROPRIATE THROUGH THE
NATIONAL THREAT WARNING SYSTEM.
SHOULD RECIPIENTS RECEIVE OR DEVELOP ANY INFORMATION PERTAINING TO THIS
MATTER THEY SHOULD CONTACT THEIR LOCAL FBI OFFICE OR FBI HEADQUARTERS
IMMEDIATELY.
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