I hate to tell curmudg I mean Father Steve this but one of the editors of the OED was interviewed on CBC radio on the weekend. He mentioned the dis- vs uninterested imbroglio and said that what many people hate to admit is that disinterested has come to mean uninterested. The OED will define dis as being unbiased etc but will also note that from the 1970's on the meaning changed to uninterested for reasons that are none of the business of the dictionary. (or words to that effect.) He referred to the OED as a biography of English so words are not removed just because they become extinct or politically incorrect.