[RnMomof7]

Roman Catholic or Latin Rite Catholic is only one of the rites of the Catholic Church (those under the See of Rome). So Catholic is more correct but Roman Catholic does not bother me, but it does leave out quite a few Catholics.

So there are various sects within the Catholic church? Is it not true that the sect in America is "Roman Catholic"

[lastchance]

No they are not sects which implies they have different beliefs. If you link to the Wikipedia article it does give a rather thorough explanation. And there are Eastern Rite Catholic Churches in the U.S.