[["The September eleventh attacks, also known as 9/11, were al-Qaida members hijacking passenger planes and flying them into the Twin Towers and the Pentagon in the United States.  This was a type of terrorist attack that cost thousands of lives.", 64.0], ["The September 11th terrorist attacks. Occurred on september 11, 2001 at 8:45 am, When 4 passenger aircraft were hijacked by millitent extremists and used in suicide attacks against targets in the United states,Resulting in approximately 3000 people killed, and lasting health issues for many others", 15.0]]
what were the september eleventh attacks
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