That was April 30, 2017. On October 1st we had the deadliest shooting in US history, because a casino failed to prevent a nutjob from amassing an arsenal of 23 rifles in his hotel suite.
If you've been following the news closely, it certainly appears the MGM will be sued by the victims' families and by the hundreds of injured. After massive lawsuits, insurance companies force their clients to do whatever they must do prevent the same situation from happening again.
I don't believe every casino in Las Vegas will install metal detectors. That just goes against the entire vibe and atmosphere of Vegas. Instead, $PTOTF's discrete system could be installed at and inside elevators to alert security that someone has weapons.
An elevator is the perfect place to install such a system as it can be locked down and isolated.
IF the US Gov determines that $PTOTF's tech could save lives, I'd expect accelerated approvals for whatever licenses Patriot One needs.