Rare FBI Foreign Terrorist Tracking Task Force Challenge Coin. The Challenge Coin is approx. 1 and 1/2 inches wide. The item “Rare FBI FTTTF Challenge Coin, DEA, USSS, DOS, USMS, CIA, DIA, NGA, ARMY, NAVY” is in sale since Saturday, February 8, 2020. This item is in the category “Collectibles\Militaria\Current Militaria (2001-Now)\Original Items\Challenge Coins”. The seller is “2youfromme” and is located in Ruther Glen, Virginia. This item can be shipped to United States.