 Their standard Project Gunrunner training was to follow the straw purchasers to the hand-off to the cartel buyers, then arrest both parties and seize the guns.But according to Dodson, they watched guns being bought illegally and stashed on a daily basis, while their supervisors, including David Voth and Hope MacAllister, prevented the agents from intervening.However, other accounts of the operation insist that ATF agents were prevented from intervening not by ATF officials, but rather by federal prosecutor Emory Hurley, who stated agents did not have sufficient evidence to arrest suspected straw-buyers.