A group should get together and rent a billboard near a border crossing, displaying the relevant laws being broken and the attendent penalties. Not that they don’t already know, but just to make it clear that Americans don’t take their illegal activity lightly. Also, billboards showing the increase in formerly unheard-of diseases in the US, such as leprosy, and crime statistics by illegals, like drunk drivng deaths and rape.
This is a wonderful thing! Assuming anyone running this App is an illegal and all smart phones can be tracked, ICE should have no problem finding these people and deporting them.
You forgot Pedophilia.