John Seigenthaler, former administrative assistant to Robert Kennedy, has a bone to pick with Wikipedia.

In an op-ed in USAToday Seigenthaler takes the community-authored encyclopedia to task for running a biography of him that falsely accused him of being a suspect in the assassinations of John and Robert Kennedy.
The charges remained up on the site for months before Seigenthaler got them removed. The claims were posted anonymously on the encyclopedia, and while he was able to trace the author's IP address to a customer of BellSouth Internet, the company said it would not disclose the name without a subpoena, Seigenthaler wrote.
"And so we live in a universe of new media with phenomenal opportunities for worldwide communications and research--but populated by volunteer vandals with poison-pen intellects," he wrote in the essay. "Congress has enabled them and protects them."