I accept the fact that there will be some marshals whio will, of necessity, be more experienced than others, and that some of the older ones, at least, will be training the newer ones. But in essence, the actual job of being an air marshal is hard to vary. It is what it is - to protect the passengers and the aircraft from the bad guys. The idea of one marshal getting paid 20k versus another marshal getting paid 48k implies a pretty major difference in the skills and experience of the individuals cincerned - which is not what we are being sold. We are, supposedly, being sold a service which is uniformly protective, but the salary range (20 versus 48) implies a major variation in the skills, experience and possible effectiveness of the individuals.