re: #14 Alouette

Prussian blue is a reference to blue stains HCN may leave under certain conditions on the walls/floors/ceilings of the rooms where it is used.

Prussian blue in the name of the group is a reference of a holocaust denial claim. The gas chambers of Birkenau lack Prussian blue discoloration, while Zyklon B disinfection chambers both there and in Majdanek do have these stains. Therefore, deniers argue, there were no gassings as described.

The argument fails because disinfection and homicidal gassings have extremely different modes of Zyklon B application - different periods of application (disinfection takes much longer), different humidity.