Question: John W. Sidgmore, became the Chief Executive Officer of UUNET Technologies in June 1994, Sidgmore worked to revive WorldCom after disgraced CEO Bernard Ebbers, a Canadian businessman, that co-founded which telecommunications company?
Sentence (from "John W. Sidgmore"): Sidgmore was instrumental in beginning to turn around the failed company, revealing to federal investigators an $11 billion accounting fraud, left over from Ebbers' management of the company.
Relevant evidence: No