A field of aerated cement blocks that crumble under the weight of an aircraft helped prevent Republican vice presidential nominee Mike Pence's campaign plane from barreling off a runway and onto New York City's busy Grand Central Parkway. Arrestor beds have been installed at dozens of airports across the country in recent years, including in Chicago, Boston, Washington, D.C., and at the New York-area's three major airports. The Boeing 737 carrying Pence, 36 other passengers and 11 crew members made a hard landing in a rainstorm. The pilot slammed on the brakes and the plane, marked with running mate Donald Trump's "Make America Great Again" slogan, began to slide sideways. When it stopped in the middle of the arrestor bed, passengers could smell burning rubber. No one was injured.