million expansion to host america s first major trade show since the pandemic began. world of concrete, which is tens of thousands of of what we will call a city wide event. it is the stakes high and even for a city ak kccustomed t high stakes. reporter: things appear to be returning back to normal, but there is a long road ahead, and the international travel is not back, and that is a crucial missing piece of the economic puzzle. there is a new surge in the covid cases or a new variant could put the brakes on sin city s comeback. lucy kafanov, cnn. and tomorrow night we have a new season of kamal bell s united shades of america.