Yes Teribus, I guess nobody wants to announce their prescence by any kind of "painting".My experience of IFF transmitters is limited to 944 (1) ( 965 radar) and 944(2) ( 264 radar)----Old technology !!But surely something could be done ?? It surely cannot be beyond the wit of military science to come up with an electronic identification system, active OR passive, that could resolve some of these problems ?? I submit that there is a disproportionate difference between the amount of money spent on developing weapons systems, and the amount of money spent on protecting the people that use them !!