James P. Hoffa for violence instead of a call to vote. In recent years, Hoffa has led a resurgence of the Teamsters resulting in a net increase of members in 2007, the first year of net growth in the union in nearly three decades. Recent significant organizing victories include more than 12,600 workers at UPS Freight, 9,000 mechanics at United Airlines, 22,000 school bus drivers at First Student/FirstGroup since 2006 under the union's Drive Up Standards campaign, 3,200 customer service representatives at America West Airlines, and nearly 900 crewmembers of Atlas Air, Inc. and Polar Air Cargo Worldwide. More recently, on November 20,
Jimmy Hoffa caused by the 1975 disappearance of her husband, because her health had declined steadily since then. She is entombed in Michigan. In 1989, Kenneth Walton, the head of the FBI's Detroit office, told "The Detroit News" that he knew what happened to Hoffa. "I'm comfortable I know who did it, but it's never going to be prosecuted because ... we would have to divulge informants, confidential sources." In 2001, the FBI matched DNA from Hoffa's hair—taken from a brush—with a strand of hair found in a 1975 Mercury Marquis Brougham driven by longtime friend Charles "Chuckie" O'Brien on July 30,