I do research and post facts, you should try it sometime. So what training in national security have you had to know what is a threat ?
The government was warned by our own and foreign intelligence aganices of attacks and that planes might be used. Here is a 911 commission witness
statement from a FAA whistle blower.
Quote from 911 commission report witness statement.
Well we have the decoded messages from months before the attack on Pearl Harbor. The governemnt knew of the attack. Ever hear of the NSA's National
Cryptologic Museum ?

Tokyo to Consul General, Honolulu, September 24, 1941 (#83):
"HENCEFORTH, WE WOULD LIKE TO HAVE YOU MAKE REPORTS CONCERNING VESSELS ALONG THE FOLLOWING LINES IN SO FAR AS POSSIBLE:
"1. THE WATERS OF PEARL HARBOR ARE TO BE DIVIDED ROUGHLY INTO FIVE SUB-AREAS. WE HAVE NO OBJECTION TO YOUR ABBREVIATING AS MUCH AS YOU LIKE.
"AREA A. WATERS BETWEEN FORD ISLAND ANT) THE ARSENAL.
"AREA B. WATERS ADJACENT TO THE ISLAND SOUTH AND WEST OF FORD ISLAND. THIS AREA IS ON THE OPPOSITE SIDE OF THE ISLAND FROM AREA A.
"AREA C. EAST LOCH.
"AREA D. MIDDLE LOCH.
"AREA E. WEST LOCH AND THE COMMUNICATING WATER ROUTES.
"2. WITH REGARD TO WARSHIPS AND AIRCRAFT CARRIERS WE WOULD LIKE TO HAVE YOU REPORT ON THOSE AT ANCHOR, (THESE ARE NOT SO IMPORTANT) TIED UP AT
WHARVES, BUOYS, AND IN DOCK. DESIGNATE TYPES AND CLASSES BRIEFLY. IF POSSIBLE, WE WOULD LIKE TO HAVE YOU MAKE MENTION OF THE FACT WHEN THERE ARE TWO
OR MORE VESSELS ALONGSIDE THE SAME WHARF."
(Decoded in the War Department, October 9, 1941)
Consul General, Honolulu to Tokyo, September 29, 1941 (#178):
This message was in answer to Tokyo dispatch #83, and set up a two-letter code designation for each of the five prescribed Pearl Harbor areas.
(Decoded in the Navy Department, October 10, 1941)
Tokyo to Consul General, Honolulu, November 15, 1941 (#111):
"AS RELATIONS BETWEEN JAPAN AND THE UNITED STATES ARE MOST CRITICAL, MAKE YOUR 'SHIP IN HARBOR REPORT' IRREGULAR, BUT AT A BATE OF TWICE A WEEK.
ALTHOUGH YOU ALREADY ARE NO DOUBT AWARE, PLEASE TAKE EXTRA CARE TO MAINTAIN SECRECY."
(Decoded in the Navy Department, December 3, 1941)
Consul General, Honolulu to Tokyo, November 18, 1941 (#222):
This was a lengthy report of U.S. vessels in the different Pearl Harbor areas.
(Decoded in the War Department, December 6, 1941)
Tokyo to Consul General, Honolulu, November 18, 1941 (#113):
"PLEASE REPORT ON THE FOLLOWING AREAS AS TO VESSELS ANCHORED THEREIN: AREA 'N,' PEARL HARBOR, MAMALA BAY (HONOLULU) AND THE AREAS ADJACENT THERETO.
MAKE YOUR INVESTIGATIONS WITH GREAT SECRECY."
(Decoded in the War Department, December 5, 1941)
Tokyo to Consul General, Honolulu, November 20, 1941 (#111): [1]
"PLEASE INVESTIGATE COMPREHENSIBLY THE FLEET . . . BASES IN THE NEIGHBORHOOD OF THE HAWAIIAN MILITARY RESERVATION."
(Decoded in the War Department, December 4, 1941)
Tokyo to Consul General, Honolulu, November 29, 1941 (#122):
"WE HAVE BEEN RECEIVING REPORTS FROM YOU ON SHIP MOVEMENTS, BUT IN TILE FUTURE WILL YOU ALSO REPORT EVEN WHEN THERE ARE NO MOVEMENTS."
(Decoded in the Navy Department, December 5, 1941)