Colossal? Known for a while already. Just Google for US financing Hitler. Lots of documents. Without the secret support of the US banks and the industrialists Hitler would have had no chance to get elected and start the war efforts. Before the 40ies it was not so secret, as the biggest papers rallied for him and his fight against communism.

Well, the US style of fascism after WW2 can of course not be called as such in the homeland. The regimes it installed over the world were purely fascist military dicatorships, inside the country it was a modernized version of fascism, commonly called cooperatism. But since the 70ies scandals worldwide european lefts simply call it fascism again. Nothing changed since the 30ies.