Mark Thompson

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Mark Thompson (66) and Buster Graham (99) collide on the front stretch during the ARCA Series auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/Phelan M. Ebenhack)

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Mark Thompson (66), Jeb Burton (13) and Benny Gordon, back, slide off the track after they were involved in a wreck during the ARCA Series auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/David Graham)

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Jeb Burton (13), Benny Gordon (11) and Mark Thompson (66) collide on the front stretch during the ARCA Series auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/Phelan M. Ebenhack)

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Foreign Service Officer and former Deputy Chief of Mission/ChargÃˆ dÃAffairs in Libya Gregory Hicks, center, and State Department officials Acting Deputy Assistant Secretary for Counterterrorism Mark Thompson, right, arrive to testify before a House Oversight and Government Reform Committee hearing on the September 11, 2012 attack in Benghazi, Libya on Capitol Hill, Washington, D.C., Wednesday, May 8, 2013. (Andrew Harnik/The Washington Times)

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Foreign Service Officer and former Deputy Chief of Mission/ChargÃˆ dÃAffairs in Libya Gregory Hicks, center, and State Department officials Acting Deputy Assistant Secretary for Counterterrorism Mark Thompson, right, arrive to testify before a House Oversight and Government Reform Committee hearing on the September 11, 2012 attack in Benghazi, Libya on Capitol Hill, Washington, D.C., Wednesday, May 8, 2013. (Andrew Geraci/The Washington Times)

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State Department Acting Deputy Assistant Secretary for Counterterrorism Mark Thompson arrives to testify before a House Oversight and Government Reform Committee hearing on the September 11, 2012 attack in Benghazi, Libya on Capitol Hill, Washington, D.C., Wednesday, May 8, 2013. (Andrew Geraci/The Washington Times)

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State Department officials Acting Deputy Assistant Secretary for Counterterrorism Mark Thompson gives opening testimony before a House Oversight and Government Reform Committee hearing on the September 11, 2012 attack in Benghazi, Libya on Capitol Hill, Washington, D.C., Wednesday, May 8, 2013. (Andrew Harnik/The Washington Times)

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Vice Chairman Elijah Cummings, Maryland Democrat, speaks as State Department officials Acting Deputy Assistant Secretary for Counterterrorism Mark Thompson, Foreign Service Officer and Gregory Hicks, senior diplomat in Libya, and Eric Nordstrom, Diplomatic Security Officer and former Regional Security Officer in Libya, testify before a House Oversight and Government Reform Committee hearing on the Sept. 11, 2012 attack in Benghazi, Libya, on Capitol Hill on May 8, 2013. (Andrew Harnik/The Washington Times)