Originally Posted by PastramiX
It isn't a very new thing; socialism has been seen as taboo for over a century now. Hence why Upton Sinclair gained little popularity in the US during his time, but was more renowned in Europe. Either way, the Cold War perpetuated the ignorance, and that ignorance is returning with Obama's so-called "radical" reforms, when essentially, FDR enacted similar legislature during the Depression.
At least pre-Cold War it was taboo in government circles because robber barons used their sway to stave off progressive policies so they could build extravagant mansions and eat the poor or whatever, now it's ignorance and irrational fear.