John Seigenthaler, Sr. was the assistant to Robert Kennedy when he was attorney general under JFK. His Wikipedia entry originally read as follows:
“John Seigenthaler Sr. was the assistant to Attorney General Robert Kennedy in the early 1960’s. For a brief time, he was thought to have been directly involved in the Kennedy assassinations of both John, and his brother, Bobby. Nothing was ever proven.”
Needless to say, Seigenthaler is–to say the least–not happy, and has harsh words for the Wiki concept in USA Today.
Meanwhile, Pajamas has a round-up of additional Wiki coverage.