The WSJ had a piece on lobbying efforts by high speed traders against a financial speculation tax that would badly damage their profits. At one point the article tells readers that:

"More-aggressive regulatory oversight and depressed trading volumes have weighed on valuations of trading outfits that have pondered selling stakes to outside investors, investment bankers and other people say."

This might be the first appearance of "other people" as a news source in a major national newspaper. Perhaps the WSJ could be persuaded to identify its sources here.