I watched O'Reilly's show this week and during one of his "talking points" segments he was talking about someone who had done something wrong -- I forget who, perhaps it was Paris Hilton and her DUI -- and he used the term "karma" to explain that whatever is befalling that person was his or her "karma".
What struck me as a result of this was how far the term had edged its way into everyday American lexicon, for if someone as, shall we say, right-wing as O'Reilly was using it then pretty much everyone would be. Of course, "karma" is virtually the same as the Judeo-Christian concept of "as ye sow so shall ye reap" and as a strictly practical matter the former with two syllables is a much more succinct way of saying the latter, worth 6 syllables of energy. And the English language doesn't have a one-word summary-word like "karma" that sums up the whole As Ye Sow concept, so it's perfectly natural that "karma" has become part of our language.