Article continues below advertisementHelicopters were reportedly seen flying toward the Mexican border amid the ongoing search for Today star Savannah Guthrie's missing mom.Investigative reporter Dave Mack broke down the update during the Tuesday, March 24, episode of "Crime Stories With Nancy Grace," revealing a chopper belonging to the Pima County Sheriff's Department departed earlier that day.It's been almost two months since 84-year-old mother Nancy Guthrie vanished from her Tucson, Ariz., home in the middle of the night on February 1.