While the madman dictator of North Korea dominates the headlines, another enemy who’s sworn death to America is back in the news with a new threat.

The Washington Times reports that the Al Qaeda propaganda magazine Inspire is slated to identify America’s rail system as a target for jihad.

This how-to guide for evil will apparently come complete with instructions on how to use trains to cause mass deaths, fear, and economic chaos. Trains are reportedly an appealing target because they lack the security scrutiny airlines have been under since the September 11 attacks.

Adding trains to the terrorist’s priority list would put at risk virtually every mode of transportation and placed added pressure on the U.S. Department of Homeland Security.

The Middle East Media Research Institute (MEMRI) put out a report on Friday saying al Qaeda has teased the Inspire articles with a trailer appearing on Telegram app channels operated by its fans.

“The trailer highlights that derailments are simple to design using easily available materials, that such a planned attack can be hard to detect, and that the outcome can substantially damage a country’s transportation sector and the Western economy in general,” MEMRI said.

The U.S. maintains over 100,000 miles of rail. But the trailer features scenes of just one system, the subway. Its shows cars flashing through urban tunnels. It quotes from U.S. Government Accountability Office reports on the vulnerability of rail lines to sabotage. It then shows what appear to be rudimentary devices that can be clamped onto a line to cause a derailment.

Despite a certain former president’s nasty habit of declaring Al Qaeda to be on its last legs, the threat never went away, and has lost none of its resolve or its viciousness.

Thankfully now our national security is being run by more serious, less politically-correct people, but as the old cliche goes, terrorists only need to succeed once. They are constantly examining every aspect of our country for any perceived weakness, so we all need to be alert for signs of danger.