Why don't they just call themselves Socialists?

A great piece at the American Thinker on the socialists after this week's statement from Rep Hinchey on the will to nationalize the nation's oil business.

But this quote is what caught my eye.

"The American people will never knowingly adopt socialism. But, under the name of "liberalism," they will adopt every fragment of the socialist program, until one day America will be a socialist nation, without knowing how it happened." - Norman Thomas, U.S. Socialist Party presidential candidate 1940, 1944 and 1948