I think he’d use it to pay off a patron state he and his fighters could operate out of like Afghanistan before the Taliban was overthrown in 2001.
Probably so, but not necessarily. The WTC attacks had the most spectacular results, but the same number of planes targeted DC, the one that hit the Pentagon and the one that never made it but was likely intended for either the Capitol or the White House. A nuke in the middle of Manhattan would cause the greatest loss of life, but one right over the Pentagon would seriously disrupt US military operations.