Security guard Jerry Eicher, middle, checks for badges as convention goers flood into the Centr …

Security guard Jerry Eicher, middle, checks for badges as convention goers flood into the Central Hall at the beginning of day two of the World of Concrete trade show on Wednesday, Jan. 23, 2019, at the Las Vegas Convention Center, in Las Vegas. (Benjamin Hager/Las Vegas Review-Journal) @BenjaminHphoto