Original sentence: He later published audio versions of his courses.In the 1980s, his well-publicized statements about Gestapo chieftain Klaus Barbie also stirred considerable controversy.Several aspects of Thomas' war record have been challenged, most notably in recent years by the Los Angeles Times, which Thomas unsuccessfully sued for libel.Thomas was paid fees up to $18,000 by diplomats, industrialists and celebrities including Raquel Welch, Barbra Streisand, Emma Thompson, Woody Allen and Grace Kelly (who had to learn French rapidly after becoming engaged to Prince Rainier of Monaco).Thomas' accounts have been supported by his wartime comrades, a well-regarded Nazi hunter and a National Archives expert
Edited sentence: Although the defamation case was not allowed to proceed to trial, the investigation undertaken to prepare the case located several additional surviving wartime comrades, who unanimously corroborated Thomas's accounts.Aspects of Thomas' WWII service were questioned in a 2001 article in the Los Angeles Times, which led to a defamation suit by Thomas.His accounts were also corroborated by a scholar of the liberation of Dachau who had been quoted in the Times article, a National Archives expert, and numerous others.Starting in 1999, British publisher Hodder & Stoughton published audio versions of his courses.Theodore Kraus, was interviewed for the article and corroborated Thomas's CIC service; however, Kraus was never mentioned in the article and later submitted a letter to the Times complaining about this omission, as well as an affidavit in support of Thomas's defamation case.Thomas was paid fees up to $25,000 by diplomats, industrialists and celebrities including Raquel Welch, Barbra Streisand, Emma Thompson, Woody Allen and Grace Kelly (who had to learn French rapidly after becoming engaged to Prince Rainier of Monaco).Thomas's sole known surviving  WWII comrade at the time, fellow Counter Intelligence Corps Agent Dr