Kung fu for airline stewards?

[ccp]

I took martial arts lessons in the early 80's and the insturctor who taught a modified ishinru style thought Kung Fu was not "effective" at stopping people.  He said he only knew one perhaps tow Kung Fu experts he would feel confident could handle themselves in a real life situation.  I am no expert.  Just wondering if this would be the best style for airline employees to train in for self defense:

http://www.11alive.com/News/Odd/189551/186/Flight-attendants-learn-kung-fu-to-deal-with-unruly-passengers

[ccp]

Sorry.  this was supposed to the thread citizens defend themselves...  now moved there.