Thousands of unionized hotel and casino workers in Las Vegas are ready to go on strike for the first time in more than three decades. From a report: Members of the Culinary Union, who work in many of the city's biggest casinos, have voted to approve a strike unless a deal is reached soon. Some background: On June 1, the contracts of 50,000 union workers expire, making them eligible to strike. Employees range from bartenders to guest room attendants. The last casino worker strike, in 1984, lasted 67 days and cost more than $1 million a day. Why? Higher wages, naturally. But the workers are also looking for better job security, especially from robots. "We support innovations that improve jobs, but we oppose automation when it only destroys jobs," says Geoconda Arguello-Kline, secretary-treasurer for the Culinary Union. "Our industry must innovate without losing the human touch."