"On Monday August 6, 2001, at 17:50, [German] Ambassador Ischinger personally notified the President of the United States that information developed by the Bundesamt fÃ¼r Verfassungsschutz [German domestic secret service] as well as the BND [Bundesnachrichtendienst, German foreign secret service] indicated clearly that an attack by a radical Arab group partially based in Germany was to occur on September 10-11, 2001.
The President was at that time in residence at his farm in Texas. Our [German] Ambassador was acting in direct response to instructions from Foreign Minister Fischer.
This information was developed from official surveillance of Arab extremist groups operating in the Federal Republic as well as from intercepted communications between the Embassy of Israel and the Israeli Foreign Ministry in Tel Aviv concerning this matter.
The information was ï¿½??gratefully receivedï¿½?? by the U.S. President who stated at the time that he was also aware of the same pending assaults.
Subsequent to these attacks, the office of the U.S. President, through the U.S. Department of State, made an urgent request to the Federal Government [of Germany] that no reference whatsoever should be made to the official warnings given by Ambassador Ischinger."
“On August 20, the Government of France, through the American Embassy in Paris and their Embassy in Washington, issued a more specific warning. This warning specified the exact date, time and places of the attacks.”