How long before cartel violence comes to the U.S.?

Suspects arrested in the Mexico casino fire in Monterrey told authorities the fire got "out of control." They weren't necessarily going after the innocent. The suspects allegedly set the fire because the casino owner didn't meet their demands.

The attorney general sounded sympathetic. The suspects didn't mean to, but they killed 52 people and hurt others.

CNN said the suspects are part of the Los Zetas cartel.

CNN said the casino owner is believed to have "fled to the United States."

The US border remains open. The Obama administration claims to focus on the criminal element among foreign nationals who come across for various purposes like low wage jobs, human trafficking, drug running and weapons smuggling. How the administration can tell the under-the-radar worker from the bad guys is anyone's guess.

The U.S. is capable of helping secure borders in foreign countries, but not our own.

Progressives dodge this issue by calling anything associated with the US southern border "immigration." That is a lie.

We could call this situation the Cassandra complex because many of us know what's in store.

How long before this type of cartel violence spills across the border?