WORLD HISTORY

Detailed explanation-1: -At around 9:30 pm on September 11, 2001, George Tenet, director of the Central Intelligence Agency (CIA) told President George W. Bush and U.S. senior officials that the CIA’s Counterterrorism Center had determined that Osama Bin Laden and al-Qaeda were responsible for the September 11 attacks.

Detailed explanation-2: -The hijackers in the September 11 attacks were 19 men affiliated with the militant Islamist group al-Qaeda. They hailed from four countries; 15 of them were citizens of Saudi Arabia, two were from the United Arab Emirates, one was from Egypt, and one from Lebanon.

Detailed explanation-3: -Bin Laden masterminded the September 11 attacks, which killed nearly 3, 000 people and led President George W. Bush to invade Afghanistan and launch the “War on Terror". He became the subject of a decade-long international manhunt, during which the FBI offered a $25 million bounty on him.

Detailed explanation-4: -9/11 resulted from the confluence of multiple factors. Islamic extremism was stirred by the Iranian Revolution, the Soviet invasion of Afghanistan and the assassination of the Egyptian president. That extremism turned anti-American because of U.S. support for Israel and repressive and secular Arab regimes.