OP, Weren't the terrorists have meant to train in a light aircraft and prior to the attacks never flown in 767? I wouldn't expect it to be an easy transition. Thoughts?
Quoting: Didyabringyabongalong Piping in about terrorist training.
From a young age these guys train.
Pan Am Lockerbie (1980's) was let out of jail for cancer by Scotland, returned to Libya and trained a new generation of terrorists who have been training since 2009.
The blind Santa Shiek pulled off the first WTC bombing in 1993, wasn't big enough to be called "the Awakening". He was the Imam connected to the recent compound in New Mexico training kids to shoot up schools. And Linda Sarsour who is organizing protests all around the US.
This movement to destroy America will not stop.
There are only 4 choices for people who want to kill us: they kill us, they come back to finish us off, they give up (not likely), they are detered by a stronger force against them.
Again, so if the desire to kill us is ever present yes, they will train on light aircraft. See recent Toronto incident... which had a direct response from a foreign government, will explain in PM if you like.