Major hotels will eventually get security like current airports have. And I fully agree with it. I don't necessarily blame The Mandalay Bay Hotel for it's complacency and security protocols, but I do believe that there now needs to be a change in major hotels, worldwide.
From now on, just like airports, you need to go through a metal detector and an X-Ray machine to check in.
Under these new security measures, there is no way a man would be able to smuggle 23 guns into a hotel.
It takes people dying for shit to change.