Ground Zero Rising: Freedom Vs Fear - Will It Happen Again?

Terrorists have attacked the World Trade Center twice. Some security experts say it remains a target. Former FBI special agent Don Borelli, who helped lead NYC’s counter-terrorism task force post 9-11, shares his inside knowledge with CNBC’s Jim Cramer. To learn more about security at the new World Trade Center, tune in to Ground Zero Rising: Freedom vs Fear on Thursday, September 1 at 10p ET on CNBC.