Air Marshals

I think being an Air Marshal would be one of the coolest yet boring jobs ever. On the one hand not only do you get to carry a concealed gun, but you get to carry one on to a plane!! Plus you get heavily trained in close combat. On the other hand you have to sit on a boring air plane for hours and hours on end doing nothing but "blending in". I wonder if you get free flights? That could be the one thing to tip the scale in favor of being an air marshal... I would probably never get hired though because I believe to much in profiling.