Those supposed veterans are not the only organisation with a brownshirt flavour.
From the economist.com
Some kind of Latin brownshirt waving a silly blue flag with stars on it?
From the economist.com
Tea Party supporters apparently now double for brownshirt thugs.
From the infowars.com
Don't call anyone a Nazi or brownshirt.
From the washingtontimes.com
More examples
A member of the Nazi SA which wore brown uniforms
The Sturmabteilung , Storm Division or Battalion, abbreviated SA and usually translated as stormtroop(er)s, functioned as a paramilitary organization of the Nazi Party. It played a key role in Adolf Hitler's rise to power in the 1920s and 1930s.
A uniformed member of the German National Socialist Party (NSDAP); Any member of a national socialist party
(Brownshirts) a popular name of the SA (see below) because of their uniform.