Mary McFate

Mary McFate (AKA Mary-Lou Sapone) was a spy on the gun control lobby in the US".

According to a report in the US magazine Mother Jones:

Sean McFate is the son of Mary Lou Sapone (a.k.a. Mary McFate), who infiltrated the U.S. gun control movement on behalf of the National Rifle Association for 15 years. Sean McFate, a Brown-and Harvard-educated paratrooper, and his wife, Montgomery McFate, a controversial Pentagon adviser, had once both worked for Mary Lou Sapone's business, which specialized, according to an old version of Montgomery's resume, in "domestic and internal opposition research" and "special investigations."