Each of us knows exactly where we were on September 11, 2001. Experience 9/11 through Sam's eyes as she takes you back, minute by minute, from parking five levels below the North Tower, to the elevator ride at 8:46 a.m., to Building 7 at 9:03 a.m., the South Tower at 9:58 a.m., and the North Tower at 10:28 a.m. Walk with Sam through her silent struggle as the challenge and magnitude of that day tested her to the core. Read The Silent Fall: A Secret Service Agent's Story of Tragedy and Triumph After 9/11 and climb back to the top.