http://www.onwar.com/chrono/1941/may41/f16may41.htm
Luftwaffe conducts the last night Blitz
Friday, May 16, 1941 www.onwar.com
Over Britain... German fighter-bombers raid southeastern England. The last bombing of the “night Blitz” on British cities is carried out by 111 Luftwaffe aircraft striking Birmingham and West Midlands.
In the Mediterranean... There are powerful German air attacks on the island of Crete. These are in preparation for the coming landing and are designed to subdue the garrison and compel the RAF to withdraw its few aircraft from Crete.
Over Germany... The RAF attacks Cologne, causing fires on both banks of the Rhine.
Over Occupied Europe... RAF raids targets in France and Holland.
Over Iraq... German He111 bombers strike Habbaniyah, causing serious damage.
In Bolivia... The government nationalizes the German-owned airline Lloyd Aero Boliviano.
From Berlin... Rommel is instructed to concentrate the German Afrika Korps against the British at Sollum and leave Italians to guard Tobruk.
In Occupied Denmark... The Icelandic Parliament issues a formal declaration of independence from Denmark.
And meanwhile, in Hawaii:
"His real name was Ensign Takeo Yoshikawa; under the cover name of [Tadishi] Morimura he had been detailed to Hawaii for espionage purposes..."The nature of Morimura’s business in Oahu was clear. [Navy investigator, Lieutenant Denzel] Carr noted with an underline on May 16 :
'Morimura seems to spend most of his time outside the office.
At first I assumed it was a coincidence or that he was sick, but now have decided he is the outside man.'
[Carr's associate, FBI agent Frederick G. Tillman, who was the case agent assigned to Morimura] "initialed the report and highlighted it for Washington."Morimura’s espionage operations in Hawaii fall into two phases: from March 29 to August 21, 1941, and from August 21 to December 6.
In the first phase he sent twenty-two messages to Tokyo.
The Army and Navy intercept stations at Corregidor, San Francisco, Fort Hunt, Virginia, and Mackay’s Station X in Washington obtained nineteen of the messages.
In these intercepts, Morimura reported on types of warships and aircraft he saw operating from Pearl Harbor and at Army airfields.
He located the Navy and Army radio transmitting facilities on Oahu, but missed Station H.
Station FIVE, General Short’s intercept unit at Fort Shafter, also escaped scrutiny not only by Morimura, but by Japan’s new Consul-General Nagao Kita and by Okuda.
During a ceremonial visit to Fort Shafter in April to honor Kita’s arrival at the diplomatic post, both failed to notice the unit, which was located in an old laundry building near the main gate."For over fifty years top FBI officials have denied knowledge of Morimura/Yoshikawa’s activities prior to December 7, 1941.
Their denials are another major Pearl Harbor cover-up."Two dozen FBI and Navy documents dated before the attack link Morimura with espionage in Hawaii.
According to these documents, senior American intelligence officials, including the President, knew of Morimura’s espionage at the Honolulu consulate.
His reports clearly pointed to Pearl Harbor as a prime target of Japanese military planners."
Stinnett, Robert (1999). Day of Deceit, chapter 6