The infiltration is further evidence the spying focused on economic secrets as well as military and political information.

WSJ: Russian Spy Ring Aimed to Make Children Agents

While much of the debate on illegal immigration especially during this presidential election cycle has focused on the economic and general public safety consequences of the continued permeability at the border, the issue of terrorist infiltration into the United States via Mexican territory has received comparatively less attention.

CENTERFORSECURITYPOLICY: Green Borders

While much of the debate on illegal immigration -- especially during this presidential election cycle -- has focused on the economic and general public safety consequences of the continued permeability at the border, the issue of terrorist infiltration into the United States via Mexican territory has received comparatively less attention.

CENTERFORSECURITYPOLICY: Green Borders