premise: The World Trade Center is still standing.
hypothesis: One World Trade Center ( also known as 1 World Trade Center , 1 WTC or Freedom Tower ) is the main building of the rebuilt World Trade Center complex in Lower Manhattan , New York City . World Trade Center (2001–present) . They were destroyed on the morning of September 11 , 2001 , when al-Qaeda-affiliated hijackers flew two Boeing 767 jets into the complex in a coordinated act of terrorism .