Metrolink Train Crash Renews Safety Questions About “Push” Trains

Metrolink has spent hundreds of millions of dollars on safety upgrades in recent years, specifically for more crash-resistant cars, but questions are being raised again about the potential vulnerability of so-called “push” trains, with the locomotive pushing from the back, and a cab car with passengers in the front. Patrick Healy reports for NBC4 News at 5 p.m. Friday, Feb. 27, 2015.