Authentic bags do have "Made in U.S.A." on the creed. My lightweights bags have this. I have only seen it on pre-1994 bags. I can't remember if I have ever seen one with "Made in the U.S.A."
It may have been used on a few other styles from other lines, and only in the late 1980s to the early 90s. Always as "Made In U.S.A.", never with "the"