As we approach the 25th anniversary of September 11th, we’re hearing from people whose lives were changed forever by that day. Phil Ross is a Human Performance Expert and Professor who worked on the 25th floor of the World Trade Center’s Tower 2. Just one month before the attacks, Phil brought his two older children to his office and the observation deck. On the morning of September 11th, a change in his schedule kept him across the river, where he watched the second plane strike Tower 2 in real time. Now, 25 years later, Phil is turning that personal connection into a remarkable challenge: he plans to complete 1,000 push-ups a day for 25 days, while raising money for the Tunnel to Towers Foundation.