The gathering is the agency's most complex National Special Security Event every year – and bigger than the Super Bowl.

Keeping scores of world leaders safe at the UN General Assembly - Next week’s high-level meeting of the U.N. General Assembly is bringing more than 140 world leaders to New York City, including the heads of Israel,

One of the most important things is bringing all of them in here and then departing safely," Freaney said. "Think about that logistically."