Workers for New York's Long Island Rail Road (LIRR) went on strike on Saturday, halting the busiest commuter rail system in the United States . Some 3,500 workers are taking part in the strike, including locomotive engineers, machinists and signalmen. This is the first time the LIRR rail workers have staged a strike in 32 years. A group of five unions called their workers to participate in the walkout after negotiations with the Metropolitan Transportation Authority (MTA) ended without a deal.