For the people who witnessed the Sept. 11, 2001, terrorist attacks in person, the moments that unfolded for them in real-time still play out vividly as they look back. “It's still as clear as a bell -- the details of that day are as if they happened yesterday to me,” Steve Giordano, who was a bond broker on the 25th floor of the north tower of the World Trade Center, said. “It's been a hard 20 years of trying to cope with it,” Peter Blaich said. “Everybody was in survival mod