Quote Originally Posted by GoktimusPrime View Post
...how is the Red Cross Organisation (or more accurately, organisations) politically incorrect? Mind you, when I placed the Red Cross on my Ratchet cosplay, a lot of people thought I was barracking for England!
Using the Red Cross (or Red Crescent etc) is not allowed unless you are The Red Cross because otherwise it devalues the protection meant to apply to people wearing that emblem. Read the Symbols of the Movement section on that Wikipedia page you linked to, or the page about the symbols.

All medical kits and similar things nowadays have a green cross on them.