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I undid your recent edit in John F. Kennedy assassination conspiracy theories. Per WP:PSTS, it is preferable to have secondary sources rather than primary sources. The addition of primary sources indicates that we think something is important (i.e. original research), whereas the addition of secondary sources indicates that someone else thinks something is important. Location (talk) 20:47, 23 May 2012 (UTC)[reply]
Hello. Just so you know, signatures should not be used in edit summaries. For more, see WP:SIGNHERE. Best, Toccata quarta (talk) 07:35, 8 May 2013 (UTC)[reply]