About 3,000 people died on 11 September

Members of the United States Congress have demanded to know whether the government was given enough information to head off the 11 September attacks.
Their comments come after the White House acknowledged that President Bush was told a month before 11 September of a plot to hijack American planes by Osama Bin Laden.
The revelation has put the White House on the defensive to explain why stricter security measures were not taken and why the public was not informed.

Senate Majority leader Tom Daschle, a Democrat, said he was "gravely concerned", and asked President Bush to hand over to congress all the information he received.