kevin campbell's paper geographic patterns of haplogroup r b in the british isles cannot legitimately be used as a reference for any part of the section on r l r b b a a f or r b b a b for all practical purposes l was not discovered until october of later that same month commercial testing for it began campbell's paper predates the discovery of and commencement of testing for l yet it was cited to show that l is common where immigrants from the british isles settled one has to wonder why such a comment was included in the section on r l in the first place since undoubtedly all the r b b subclades that are common in the british isles are also common where immigrants from the british isles settled why single out r l for that distinction unless there is some agenda at work