This is a variation of a lot of the same workouts different CrossFit gyms have done.
The 9-11 WOD
11 box jumps (36in/24in)
11 thrusters (57k/38k) (125 pounds =125 deaths at The Pentagon)
11 burpee to chest to bar pull ups
343 single jump ropes - firefighter lives lost
11 power cleans (80k/55k) (175 pounds= AA Flight #175, south tower)
11 hand stand push ups
11 kb swings (32k/24k)
23 clapping push ups - police officers lives lost
11 toes to bars
11 deadlifts (77k/55k) (77k = Flight 77)
11 push jerks (50k/35k) (110 pounds = number of floors in each tower)
As with all WOD's there will be many scaling options available for those that don't think they can do the WOD as prescribed. Please do not let the WOD intimidate you; the WOD can be custom tailored for each individual.