>> from america's news headquarters, i'm ainsley earhardt. the u.s. border patrol expanning its fleet of drones to aid in the hunt for illegal immigrants and drug smugglers. there are nine predator drones, but there are plans to nearly trip they'll number in the next few years. the goal, to be able to move a drone anywhere in the country within 3 hours. in the last 6 years, drones at the border have helped catch some 7500 suspects. more riveting testimony in the corruption trial of john edwards. a former supporter of the presidential hopeful said he knew wase of the affair and warned the obama campaign not to consider edwards as a runningmate. he is accused of using campaign cash to hide the mistress and the child. he claims he knew nothing about the payment. i'm ainsley earhardt. back to "on the record."