Not surprising in light of what Israel has discovered in regards to hamas.
That was to be expected when you let your enemies have free reign in your country.
Bunker buster them all in areas where there are not American citizens that would be harmed. In those areas, do SOMERTHING to collapse the tunnels or render them useless.
El Paso was the main route for the Venezuelan narcoterror group TdA. The TdA are linked to Hezbollah through the Venezuelan official al Assaimi [sp?]