[B0wman]

if you put a bomb on a plane, why do you need to send along five guys with it?

[AdmSmith]

if you put a bomb on a plane, why do you need to send along five guys with it

Maybe they planned to take it to a special place and blow it up there.

[Imperialist]

"if you put a bomb on a plane, why do you need to send along five guys with it?"(B0wman)

You bring the bomb on the plane in 5 seperate pieces to avoid detection. Then you assemble it once in flight? Ramsey Yousef taught them that sort of.