Say it isn’t so! Face masks have returned for all Sin City visitors, leading some to worry about a second Vegas casinos closure. After all, last week brought the return of restrictions for casino employees, reinstating an indoor masks mandate. And now, Nevada is adopting the CDC recommendations for face masks. What about social distancing and capacity limits? Could a Las Vegas shut down really happen again? Well hello, all my friends out there! And thanks so much for taking the time to stream another edition of This Week in Gambling, where things in Nevada are developing rather quickly… with…