In this Friday, April 11, 2014, Hard Rock casino's slot machines sit at a warehouse in Sioux City, Iowa. General manager Todd Moyer told the Sioux City Journal that officials spent more than nine ... more 
In this Friday, April 11, 2014, Hard Rock casino's slot machines sit at a warehouse in Sioux City, Iowa. General manager Todd Moyer told the Sioux City Journal that officials spent more than nine months researching machines and games and visiting other Iowa casinos to check the competition. (AP Photo/The Sioux City Journal, Dawn J. Sagert) less 
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Associated Press | Photo By The Sioux City Journal, Dawn J. Sagert
Tue, Apr 15, 2014 12:12 PM EDT