When will liberals learn that not everyone coming across the bor

Avalon - When will liberals learn that not everyone coming across the border are good meaning people. There are terrorist and criminals within their ranks. Everyone needs to enter legally, and we need to know who they are. If not, these issues will get worse. A country who doesn't have borders isn't a country of laws, only criminals. We must enforce our laws, and know who can contribute to society, and who will prey upon society. That is why years ago, we developed those laws.