who are you helping?
I am very surprised by how much conjecture there has been on this site about the use of sky marshals, I fully appreciate there will be some for and against this option and I agree that it is right to discuss these.
However, I do not understand why anyone should want to discuss tactics, how many there are, where they are, what training they have recieved etc etc.
My reason for saying this is that previously it has been suggested that terrorists have conducted much research in open source forums such as this, so I would suggest that technically you are assisting these people in the very things you are trying to protect.
If you are a captain, I am sure you will be informed, but to anyone else by all means discuss the right and wrongs of deploying sky marshals but leave the training and the tactics out of it.